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<?php
/* This PHP script emulates MySQL extension for PHP 7 using MySQLi extension
*
* Just include this file on top of your old application and it will work
* with old mysql_*() functions.
*
* If you already have a constant named MYSQL_LINK, you have to replace all
* "MYSQL_LINK" strings in this file with suitable one. (e.g. "MYSQL_LINK_2")
*
* If you already use a function named mysql_link(), yo have to replace all
* "mysql_link(" strings in this file with suitable one. (e.g. "mysql_link_2(")
*
* If you already have a global variable named dbl, you have to change the
* value of the MYSQL_LINK constant.
*
* Note that the replaces must be case sensitive.
*
* Not implemented functions:
* mysql_field_flags()
* mysql_list_processes()
* mysql_tablename()
*
* Pavel Tzonkov (C)2017
*/
define('MYSQL_LINK', 'dbl');
$GLOBALS[MYSQL_LINK] = null;
function mysql_link($link=null) {
return ($link === null) ? $GLOBALS[MYSQL_LINK] : $link;
}
function mysql_connect($host, $user, $pass) {
$GLOBALS[MYSQL_LINK] = mysqli_connect($host, $user, $pass);
return $GLOBALS[MYSQL_LINK];
}
function mysql_pconnect($host, $user, $pass) {
return mysql_connect($host, $user, $pass);
}
function mysql_select_db($db, $link=null) {
$link = mysql_link($link);
return mysqli_select_db($link, $db);
}
function mysql_close($link=null) {
$link = mysql_link($link);
return mysqli_close($link);
}
function mysql_error($link=null) {
$link = mysql_link($link);
return mysqli_error($link);
}
function mysql_errno($link=null) {
$link = mysql_link($link);
return mysqli_errno($link);
}
function mysql_ping($link=null) {
$link = mysql_link($link);
return mysqli_ping($link);
}
function mysql_stat($link=null) {
$link = mysql_link($link);
return mysqli_stat($link);
}
function mysql_affected_rows($link=null) {
$link = mysql_link($link);
return mysqli_affected_rows($link);
}
function mysql_client_encoding($link=null) {
$link = mysql_link($link);
return mysqli_character_set_name($link);
}
function mysql_thread_id($link=null) {
$link = mysql_link($link);
return mysqli_thread_id($link);
}
function mysql_escape_string($string) {
return mysql_real_escape_string($string);
}
function mysql_real_escape_string($string, $link=null) {
$link = mysql_link($link);
return mysqli_real_escape_string($link, $string);
}
function mysql_query($sql, $link=null) {
$link = mysql_link($link);
return mysqli_query($link, $sql);
}
function mysql_unbuffered_query($sql, $link=null) {
$link = mysql_link($link);
return mysqli_query($link, $sql, MYSQLI_USE_RESULT);
}
function mysql_set_charset($charset, $link=null){
$link = mysql_link($link);
return mysqli_set_charset($link, $charset);
}
function mysql_get_host_info($link=null) {
$link = mysql_link($link);
return mysqli_get_host_info($link);
}
function mysql_get_proto_info($link=null) {
$link = mysql_link($link);
return mysqli_get_proto_info($link);
}
function mysql_get_server_info($link=null) {
$link = mysql_link($link);
return mysqli_get_server_info($link);
}
function mysql_info($link=null) {
$link = mysql_link($link);
return mysqli_info($link);
}
function mysql_get_client_info() {
$link = mysql_link();
return mysqli_get_client_info($link);
}
function mysql_create_db($db, $link=null) {
$link = mysql_link($link);
$db = str_replace('`', '', mysqli_real_escape_string($link, $db));
return mysqli_query($link, "CREATE DATABASE `$db`");
}
function mysql_drop_db($db, $link=null) {
$link = mysql_link($link);
$db = str_replace('`', '', mysqli_real_escape_string($link, $db));
return mysqli_query($link, "DROP DATABASE `$db`");
}
function mysql_list_dbs($link=null) {
$link = mysql_link($link);
return mysqli_query($link, "SHOW DATABASES");
}
function mysql_list_fields($db, $table, $link=null) {
$link = mysql_link($link);
$db = str_replace('`', '', mysqli_real_escape_string($link, $db));
$table = str_replace('`', '', mysqli_real_escape_string($link, $table));
return mysqli_query($link, "SHOW COLUMNS FROM `$db`.`$table`");
}
function mysql_list_tables($db, $link=null) {
$link = mysql_link($link);
$db = str_replace('`', '', mysqli_real_escape_string($link, $db));
return mysqli_query($link, "SHOW TABLES FROM `$db`");
}
function mysql_db_query($db, $sql, $link=null) {
$link = mysql_link($link);
mysqli_select_db($link, $db);
return mysqli_query($link, $sql);
}
function mysql_fetch_row($qlink) {
return mysqli_fetch_row($qlink);
}
function mysql_fetch_assoc($qlink) {
return mysqli_fetch_assoc($qlink);
}
function mysql_fetch_array($qlink, $result=MYSQLI_BOTH) {
return mysqli_fetch_array($qlink, $result);
}
function mysql_fetch_lengths($qlink) {
return mysqli_fetch_lengths($qlink);
}
function mysql_insert_id($qlink) {
return mysqli_insert_id($qlink);
}
function mysql_num_rows($qlink) {
return mysqli_num_rows($qlink);
}
function mysql_num_fields($qlink) {
return mysqli_num_fields($qlink);
}
function mysql_data_seek($qlink, $row) {
return mysqli_data_seek($qlink, $row);
}
function mysql_field_seek($qlink, $offset) {
return mysqli_field_seek($qlink, $offset);
}
function mysql_fetch_object($qlink, $class="stdClass", array $params=null) {
return ($params === null)
? mysqli_fetch_object($qlink, $class)
: mysqli_fetch_object($qlink, $class, $params);
}
function mysql_db_name($qlink, $row, $field='Database') {
mysqli_data_seek($qlink, $row);
$db = mysqli_fetch_assoc($qlink);
return $db[$field];
}
function mysql_fetch_field($qlink, $offset=null) {
if ($offset !== null)
mysqli_field_seek($qlink, $offset);
return mysqli_fetch_field($qlink);
}
function mysql_result($qlink, $offset, $field=0) {
if ($offset !== null)
mysqli_field_seek($qlink, $offset);
$row = mysqli_fetch_array($qlink);
return (!is_array($row) || !isset($row[$field]))
? false
: $row[$field];
}
function mysql_field_len($qlink, $offset) {
$field = mysqli_fetch_field_direct($qlink, $offset);
return is_object($field) ? $field->length : false;
}
function mysql_field_name($qlink, $offset) {
$field = mysqli_fetch_field_direct($qlink, $offset);
if (!is_object($field))
return false;
/**/return empty($field->orgname) ? $field->name : $field->orgname;
}
function mysql_field_table($qlink, $offset) {
$field = mysqli_fetch_field_direct($qlink, $offset);
if (!is_object($field))
return false;
/**/return empty($field->orgtable) ? $field->table : $field->orgtable;
}
function mysql_field_type($qlink, $offset) {
$field = mysqli_fetch_field_direct($qlink, $offset);
return is_object($field) ? $field->type : false;
}
function mysql_free_result($qlink) {
try {
mysqli_free_result($qlink);
} catch (Exception $e) {
return false;
}
return true;
}
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