A php include that replaces all mysql functions with the corresponding mysqli functions

fix_mysql.inc.php

<?php
/**
 * replacement for all mysql functions
 *
 * Be aware, that this is just a workaround to fix-up some old code and the resulting project 
 * will be more vulnerable than if you use the recommended newer mysqli-functions instead.
 * So only If you are sure that this is not setting your server at risk, you can fix your old
 * code by adding this line at the beginning of your old code:

    <?php
    include_once('fix_mysql.inc.php');
 *
 * see: https://stackoverflow.com/a/37877644/1069083
 */

if (!function_exists("mysql_connect")){
	/* warning: fatal error "cannot redeclare" if a function was disabled in php.ini with disable_functions:
	disable_functions =mysql_connect,mysql_pconnect,mysql_select_db,mysql_ping,mysql_query,mysql_fetch_assoc,mysql_num_rows,mysql_fetch_array,mysql_error,mysql_insert_id,mysql_close,mysql_real_escape_string,mysql_data_seek,mysql_result
	*/
	function mysql_connect($host, $username, $password){
        return mysqli_connect($host, $username, $password);
	}
    function mysql_pconnect($host, $username, $password){
        return mysqli_connect("p:".$host, $username, $password);
	}
    function mysql_select_db($db,$dbconnect){
        return mysqli_select_db ( $dbconnect,$db );
	}
    function mysql_ping($dbconnect){
        return mysqli_ping ( $dbconnect );
	}
    function mysql_query($stmt){
		global $dbconnect;
        return mysqli_query ($dbconnect, $stmt );
	}
    function mysql_fetch_assoc($erg){
        return mysqli_fetch_assoc ($erg );
	}
    function mysql_num_rows($e){
        return mysqli_num_rows ($e );
	}
    function mysql_affected_rows($e=NULL){
        return mysqli_affected_rows ($e );
	}
    function mysql_fetch_array($e){
        return mysqli_fetch_array ($e );
	}
    function mysql_error(){
		global $dbconnect;
        return mysqli_error ($dbconnect);
	}
    function mysql_insert_id($cnx){
        return mysqli_insert_id ( $cnx );
	}
    function mysql_close(){
        return true;
	}
    function mysql_real_escape_string($s){
		global $dbconnect;
        return mysqli_real_escape_string($dbconnect,$s);
	}
    function mysql_data_seek($re,$row){
        return mysqli_data_seek($re,$row);
	}

    function mysql_result($res,$row=0,$col=0){ 
        $numrows = mysqli_num_rows($res); 
        if ($numrows && $row <= ($numrows-1) && $row >=0){
            mysqli_data_seek($res,$row);
            $resrow = (is_numeric($col)) ? mysqli_fetch_row($res) : mysqli_fetch_assoc($res);
            if (isset($resrow[$col])){
                return $resrow[$col];
            }
        }
        return false;
    }
}