<?php
/** Simple layer for supporting most common deprecated mysql_* functions in PHP 7.
 *  It replaces their calls to MySQLi function calls.
 *  Just include this file in start of your index.php.
 *
 *  Initial written by 4X_Pro, http://xpro.su
 *  Additions with Timofey Koolin: timofey@koolin.ru
 *  https://github.com/rekby/php-workarounds/edit/master/mysql-php7.php
 *  Distributed under MIT license terms.
 * **/

function mysql_connect($server,$username,$password,$new_link,$client_flags) {
  $GLOBALS['mysql_oldstyle_link']=mysqli_connect($server,$username,$password);
  return $GLOBALS['mysql_oldstyle_link'];
}

function mysql_query($sql) {
  return mysqli_query($GLOBALS['mysql_oldstyle_link'],$sql);
}

function mysql_fetch_row($res) {
  return mysqli_fetch_row($res);
}

function mysql_fetch_assoc($res) {
  return mysqli_fetch_assoc($res);
}

function mysql_fetch_array($res) {
  return mysqli_fetch_array($res);
}

function mysql_fetch_object($res) {
  return mysqli_fetch_object($res);
}

function mysql_affected_rows($link=NULL) {
  if ($link===NULL) $link=$GLOBALS['mysql_oldstyle_link'];
  return mysqli_affected_rows($link);
}

function mysql_insert_id($link=NULL) {
  if ($link===NULL) $link=$GLOBALS['mysql_oldstyle_link'];
  return mysqli_insert_id ($link);
}

function mysql_select_db($database_name) {
  return mysqli_select_db($GLOBALS['mysql_oldstyle_link'],$database_name);
}

function mysql_errno($link=NULL) {
  if ($link===NULL) $link=$GLOBALS['mysql_oldstyle_link'];
  return mysqli_errno($link);
}

function mysql_error($link=NULL) {
  if ($link===NULL) $link=$GLOBALS['mysql_oldstyle_link'];
  return mysqli_error($link);
}

function mysql_num_rows($res) {
  return mysqli_num_rows($res);
}

function mysql_free_result($res) {
  return mysqli_free_result($res);
}

function mysql_close($link) {
  return mysqli_close($link);
}

function mysql_escape_string($string){
    return mysql_real_escape_string($string);
}

function mysql_real_escape_string($string, $link=NULL){
    if ($link==NULL) $link=$GLOBALS['mysql_oldstyle_link'];
    return mysqli_real_escape_string($link, $string);
}

function mysql_result($res, $row, $field = 0){
    mysqli_data_seek($res, $row);
    $arr = mysqli_fetch_array($res);
    return $arr[$field];
}