697 lines
17 KiB
PHP
697 lines
17 KiB
PHP
<?php
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/**
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* Make mysql_connect work like mysqli_connect for future php versions.
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*
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* @author Ivor Barhansky
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* @version 0.1
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*/
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// Make sure the MySQL extension is not loaded and there is no other drop in replacement active
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if (!extension_loaded('mysql') && !function_exists('mysql_connect')) {
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// Validate if the MySQLi extension is present
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if (!extension_loaded('mysqli')) {
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trigger_error('The extension "MySQLi" is not available', E_USER_ERROR);
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}
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// The function name "getLinkIdentifier" will be used to return a valid link_indentifier, make it is available
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if (function_exists('getLinkIdentifier')) {
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trigger_error('The function name "getLinkIdentifier" is already defined, please change the function name', E_USER_ERROR);
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}
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// Define MySQL constants
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define('MYSQL_CLIENT_COMPRESS', MYSQLI_CLIENT_COMPRESS);
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define('MYSQL_CLIENT_IGNORE_SPACE', MYSQLI_CLIENT_IGNORE_SPACE);
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define('MYSQL_CLIENT_INTERACTIVE', MYSQLI_CLIENT_INTERACTIVE);
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define('MYSQL_CLIENT_SSL', MYSQLI_CLIENT_SSL);
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define('MYSQL_ASSOC', MYSQLI_ASSOC);
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define('MYSQL_NUM', MYSQLI_NUM);
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define('MYSQL_BOTH', MYSQLI_BOTH);
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// Will contain the link identifier
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$link = null;
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/**
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* Get the link identifier
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*
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* @param mysqli $mysqli
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* @return mysqli|null
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*/
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function getLinkIdentifier(mysqli $mysqli = null)
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{
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if (!$mysqli) {
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global $link;
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$mysqli = $link;
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}
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return $mysqli;
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}
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/**
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* Open a connection to a MySQL Server
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*
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* @param $server
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* @param $username
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* @param $password
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* @return mysqli|null
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* @deprecated
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*/
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function mysql_connect($server, $username, $password, $new_link = false, $client_flags = 0)
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{
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global $link;
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$link = mysqli_connect($server, $username, $password);
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return $link;
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}
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/**
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* Open a persistent connection to a MySQL server
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*
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* @param $server
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* @param $username
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* @param $password
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* @return mysqli|null
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* @deprecated
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*/
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function mysql_pconnect($server, $username, $password, $new_link = false, $client_flags = 0)
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{
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global $link;
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$link = mysqli_connect('p:' . $server, $username, $password);
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return $link;
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}
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/**
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* @param $databaseName
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* @return bool
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* @deprecated
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*/
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function mysql_select_db($databaseName)
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{
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global $link;
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return mysqli_select_db($link, $databaseName);
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}
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/**
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* @param $query
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* @param mysqli $mysqli
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* @return bool|mysqli_result
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* @deprecated
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*/
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function mysql_query($query, mysqli $mysqli = null)
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{
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return getLinkIdentifier($mysqli)->query($query);
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}
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/**
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* @param $string
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* @param mysqli $mysqli
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* @return string
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* @deprecated
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*/
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function mysql_real_escape_string($string, mysqli $mysqli = null)
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{
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return getLinkIdentifier($mysqli)->escape_string($string);
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}
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/**
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* @param mysqli_result $result
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* @return bool|array
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* @deprecated
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*/
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function mysql_fetch_assoc(mysqli_result $result)
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{
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$result = $result->fetch_assoc();
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if ($result === null) {
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$result = false;
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}
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return $result;
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}
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/**
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* @param mysqli_result $result
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* @return object|stdClass
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*/
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function mysql_fetch_object(mysqli_result $result)
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{
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$result = $result->fetch_object();
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if ($result === null) {
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$result = false;
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}
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return $result;
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}
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/**
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* @param mysqli_result $result
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* @return bool|int
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* @deprecated
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*/
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function mysql_num_rows(mysqli_result $result)
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{
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$result = $result->num_rows;
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if ($result === null) {
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$result = false;
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}
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return $result;
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}
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/**
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* @param mysqli_result $result
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* @return bool|array
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*/
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function mysql_fetch_row(mysqli_result $result)
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{
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$result = $result->fetch_row();
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if ($result === null) {
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$result = false;
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}
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return $result;
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}
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/**
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* @param mysqli $mysqli
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* @return int
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* @deprecated
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*/
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function mysql_affected_rows(mysqli $mysqli = null)
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{
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return mysqli_affected_rows(getLinkIdentifier($mysqli));
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}
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/**
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* @return void
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*/
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function mysql_client_encoding(mysqli $mysqli = null)
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{
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return mysqli_character_set_name(getLinkIdentifier($mysqli));
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}
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/**
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* @param mysqli $mysqli
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* @return bool
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* @deprecated
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*/
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function mysql_close(mysqli $mysqli = null)
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{
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return mysqli_close(getLinkIdentifier($mysqli));
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}
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/**
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* @return bool
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*/
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function mysql_create_db($database_name, mysqli $mysqli = null)
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{
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trigger_error('This function was deprecated in PHP 4.3.0 and is therefor not supported', E_USER_DEPRECATED);
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return false;
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}
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/**
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* @param mysqli $mysqli
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* @return int
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* @deprecated
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*/
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function mysql_errno(mysqli $mysqli = null)
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{
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return mysqli_errno(getLinkIdentifier($mysqli));
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}
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/**
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* Not implemented
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*
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* @return null
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* @todo implement
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*
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*/
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function mysql_db_name()
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{
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trigger_error('The function mysql_db_name() is not implemented', E_USER_WARNING);
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return false;
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}
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/**
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* @param mysqli $mysqli
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* @return string
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* @deprecated
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*/
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function mysql_error(mysqli $mysqli = null)
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{
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return mysqli_error(getLinkIdentifier($mysqli));
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}
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/**
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* @param mysqli_result $result
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* @param $result_type
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* @return void
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* @deprecated
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*/
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function mysql_fetch_array(mysqli_result $result, $result_type = MYSQL_BOTH)
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{
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return mysqli_fetch_array($result, $result_type);
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}
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/**
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* @param mysqli $mysqli
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* @return bool
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*/
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function mysql_ping(mysqli $mysqli = null)
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{
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return mysqli_ping(getLinkIdentifier($mysqli));
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}
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/**
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* @param $query
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* @param mysqli $mysqli
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* @deprecated
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*/
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function mysql_unbuffered_query($query, mysqli $mysqli = null)
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{
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return mysqli_query(getLinkIdentifier($mysqli), $query, MYSQLI_USE_RESULT);
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}
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/**
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* @return string
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* @deprecated
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*/
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function mysql_get_client_info()
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{
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return mysqli_get_client_info();
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}
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/**
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* @param mysqli_result $result
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* @return void
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* @deprecated
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*/
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function mysql_free_result(mysqli_result $result)
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{
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return mysqli_free_result($result);
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}
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/**
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* @param mysqli $mysqli
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* @return bool|mysqli_result
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*/
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function mysql_list_dbs(mysqli $mysqli = null)
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{
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trigger_error('This function is deprecated. It is preferable to use mysql_query() to issue an SQL Query: SHOW DATABASES statement instead.', E_USER_DEPRECATED);
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return mysqli_query(getLinkIdentifier($mysqli), 'SHOW DATABASES');
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}
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/**
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* @param $database_name
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* @param $table_name
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* @param null $mysqli
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* @return bool|mysqli_result
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*/
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function mysql_list_fields($database_name, $table_name, mysqli $mysqli = null)
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{
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trigger_error('This function is deprecated. It is preferable to use mysql_query() to issue an SQL SHOW COLUMNS FROM table [LIKE \'name\'] statement instead.', E_USER_DEPRECATED);
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$mysqli = getLinkIdentifier($mysqli);
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$db = mysqli_escape_string($mysqli, $database_name);
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$table = mysqli_escape_string($mysqli, $table_name);
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return mysqli_query($mysqli, sprintf('SHOW COLUMNS FROM %s.%s', $db, $table));
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}
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/**
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* @param mysqli $mysqli
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* @return bool|mysqli_result
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*/
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function mysql_list_processes(mysqli $mysqli = null)
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{
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return mysqli_query(getLinkIdentifier($mysqli), 'SHOW PROCESSLIST');
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}
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/**
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* @param $charset
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* @param null $mysqli
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* @return bool
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*/
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function mysql_set_charset($charset, mysqli $mysqli = null)
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{
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return mysqli_set_charset(getLinkIdentifier($mysqli), $charset);
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}
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/**
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* @param null $mysqli
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* @return bool|string
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*/
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function mysql_info(mysqli $mysqli = null)
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{
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$result = mysqli_info(getLinkIdentifier($mysqli));
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if ($result === null) {
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$result = false;
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}
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return $result;
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}
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/**
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* Get current system status
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*
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* @param null $mysqli
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* @return bool|string
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*/
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function mysql_stat(mysqli $mysqli = null)
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{
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return mysqli_stat(getLinkIdentifier($mysqli));
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}
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/**
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* Return the current thread ID
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*
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* @param null $mysqli
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* @return bool|string
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*/
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function mysql_thread_id(mysqli $mysqli = null)
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{
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return mysqli_thread_id(getLinkIdentifier($mysqli));
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}
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/**
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* Get MySQL host info
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*
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* @param null $mysqli
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* @return bool|string
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*/
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function mysql_get_host_info(mysqli $mysqli = null)
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{
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return mysqli_get_host_info(getLinkIdentifier($mysqli));
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}
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/**
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* Get MySQL protocol info
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*
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* @param null $mysqli
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* @return bool|string
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* @deprecated
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*/
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function mysql_get_proto_info(mysqli $mysqli = null)
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{
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return mysqli_get_proto_info(getLinkIdentifier($mysqli));
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}
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/**
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* Get MySQL server info
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*
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* @param null $mysqli
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* @return bool|string
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*/
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function mysql_get_server_info(mysqli $mysqli = null)
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{
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return mysqli_get_server_info(getLinkIdentifier($mysqli));
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}
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/**
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* Get table name of field
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*
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* @param $result
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* @param $i
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* @return bool
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*/
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function mysql_tablename($result, $i)
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{
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trigger_error('Not implemented', E_USER_WARNING);
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return false;
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}
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/**
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* Get the ID generated in the last query
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*
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* @param null $mysqli
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* @return int|string
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* @deprecated
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*/
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function mysql_insert_id(mysqli $mysqli = null)
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{
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return mysqli_insert_id(getLinkIdentifier($mysqli));
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}
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/**
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* Get result data
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*
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* @param $result
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* @param $row
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* @param int $field
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* @return mixed
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* @deprecated
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*/
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function mysql_result($result, $row, $field = 0)
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{
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$result->data_seek($row);
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$row = $result->fetch_array();
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if (!isset($row[$field])) {
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return false;
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}
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return $row[$field];
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}
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/**
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* Get number of fields in result
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*
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* @param mysqli_result $result
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* @return int
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* @deprecated
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*/
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function mysql_num_fields(mysqli_result $result)
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{
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return mysqli_num_fields($result);
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}
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/**
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* List tables in a MySQL database
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*
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* @param null $mysqli
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* @return bool|string
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*/
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function mysql_list_tables($database_name, mysqli $mysqli = null)
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{
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trigger_error('This function is deprecated. It is preferable to use mysql_query() to issue an SQL SHOW TABLES [FROM db_name] [LIKE \'pattern\'] statement instead.', E_USER_DEPRECATED);
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$mysqli = getLinkIdentifier($mysqli);
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$db = mysqli_escape_string($mysqli, $database_name);
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return mysqli_query($mysqli, sprintf('SHOW TABLES FROM %s', $db));
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}
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/**
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* Get column information from a result and return as an object
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*
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* @param mysqli_result $result
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* @param int $field_offset
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* @return bool|object
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* @deprecated
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*/
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function mysql_fetch_field(mysqli_result $result, $field_offset = 0)
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{
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if ($field_offset) {
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mysqli_field_seek($result, $field_offset);
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}
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return mysqli_fetch_field($result);
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}
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/**
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* Returns the length of the specified field
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*
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* @param mysqli_result $result
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* @param int $field_offset
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* @return bool
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* @deprecated
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*/
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function mysql_field_len(mysqli_result $result, $field_offset = 0)
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{
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trigger_error('This function is not implemented', E_USER_WARNING);
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return false;
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}
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/**
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* @return bool
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*/
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function mysql_drop_db()
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{
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trigger_error('This function is deprecated since PHP 4.3.0 and therefore not implemented', E_USER_DEPRECATED);
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return false;
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}
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/**
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* Move internal result pointer
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*
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* @param mysqli_result $result
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* @param int $row_number
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* @return void
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*/
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function mysql_data_seek(mysqli_result $result, $row_number = 0)
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{
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return mysqli_data_seek($result, $row_number);
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}
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/**
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* Get the name of the specified field in a result
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*
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* @param $result
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* @param $field_offset
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* @return bool
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*/
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function mysql_field_name($result, $field_offset = 0)
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{
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$props = mysqli_fetch_field_direct($result, $field_offset);
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return is_object($props) ? $props->name : false;
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}
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/**
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* Get the length of each output in a result
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*
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* @param mysqli_result $result
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* @return array|bool
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*/
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function mysql_fetch_lengths(mysqli_result $result)
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{
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return mysqli_fetch_lengths($result);
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}
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/**
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* Get the type of the specified field in a result
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* @param mysqli_result $result
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* @param $field_offset
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* @return string
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*/
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function mysql_field_type(mysqli_result $result, $field_offset = 0)
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{
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$unknown = 'unknown';
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$info = mysqli_fetch_field_direct($result, $field_offset);
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if (empty($info->type)) {
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return $unknown;
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}
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switch ($info->type) {
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case MYSQLI_TYPE_FLOAT:
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case MYSQLI_TYPE_DOUBLE:
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case MYSQLI_TYPE_DECIMAL:
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case MYSQLI_TYPE_NEWDECIMAL:
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return 'real';
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case MYSQLI_TYPE_BIT:
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return 'bit';
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case MYSQLI_TYPE_TINY:
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return 'tinyint';
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case MYSQLI_TYPE_TIME:
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return 'time';
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case MYSQLI_TYPE_DATE:
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return 'date';
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case MYSQLI_TYPE_DATETIME:
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return 'datetime';
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case MYSQLI_TYPE_TIMESTAMP:
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return 'timestamp';
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case MYSQLI_TYPE_YEAR:
|
|
return 'year';
|
|
|
|
case MYSQLI_TYPE_STRING:
|
|
case MYSQLI_TYPE_VAR_STRING:
|
|
return 'string';
|
|
|
|
case MYSQLI_TYPE_SHORT:
|
|
case MYSQLI_TYPE_LONG:
|
|
case MYSQLI_TYPE_LONGLONG:
|
|
case MYSQLI_TYPE_INT24:
|
|
return 'int';
|
|
|
|
case MYSQLI_TYPE_CHAR:
|
|
return 'char';
|
|
|
|
case MYSQLI_TYPE_ENUM:
|
|
return 'enum';
|
|
|
|
case MYSQLI_TYPE_TINY_BLOB:
|
|
case MYSQLI_TYPE_MEDIUM_BLOB:
|
|
case MYSQLI_TYPE_LONG_BLOB:
|
|
case MYSQLI_TYPE_BLOB:
|
|
return 'blob';
|
|
|
|
case MYSQLI_TYPE_NULL:
|
|
return 'null';
|
|
|
|
case MYSQLI_TYPE_NEWDATE:
|
|
case MYSQLI_TYPE_INTERVAL:
|
|
case MYSQLI_TYPE_SET:
|
|
case MYSQLI_TYPE_GEOMETRY:
|
|
default:
|
|
return $unknown;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get name of the table the specified field is in
|
|
*
|
|
* @param mysqli_result $result
|
|
* @param $field_offset
|
|
* @return bool
|
|
*/
|
|
function mysql_field_table(mysqli_result $result, $field_offset = 0)
|
|
{
|
|
$info = mysqli_fetch_field_direct($result, $field_offset);
|
|
if (empty($info->table)) {
|
|
return false;
|
|
}
|
|
|
|
return $info->table;
|
|
}
|
|
|
|
/**
|
|
* Get the flags associated with the specified field in a result
|
|
*
|
|
* @param mysqli_result $result
|
|
* @param int $field_offset
|
|
* @return bool
|
|
* @todo implement
|
|
*
|
|
*/
|
|
function mysql_field_flags(mysqli_result $result, $field_offset = 0)
|
|
{
|
|
trigger_error('This function is not implemented', E_USER_WARNING);
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Set result pointer to a specified field offset
|
|
*
|
|
* @param mysqli_result $result
|
|
* @param int $field_offset
|
|
* @return bool
|
|
*/
|
|
function mysql_field_seek(mysqli_result $result, $field_offset = 0)
|
|
{
|
|
return mysqli_field_seek($result, $field_offset);
|
|
}
|
|
|
|
/**
|
|
* Selects a database and executes a query on it
|
|
*
|
|
* @param $database
|
|
* @param $query
|
|
* @param mysqli $mysqli
|
|
* @return bool
|
|
* @todo implement
|
|
*
|
|
*/
|
|
function mysql_db_query($database, $query, mysqli $mysqli = null)
|
|
{
|
|
trigger_error('This function is deprecated since PHP 5.3.0 and therefore not implemented', E_USER_DEPRECATED);
|
|
return false;
|
|
}
|
|
}
|