php5.3 - mysqli_stmt:bind_params with call_user_func_array warnings [duplicate]

Answer 1

I found the answer to my problem in a user note by fabio at kidopi dot com dot br3 years ago on the PHP manual page of mysqli_stmt::bind_param() (slightly modified):

I used to have problems with call_user_func_array and bind_param after migrating to php 5.3.

The cause is that 5.3 requires array values as reference while 5.2 worked with real values (but also with references). So I created a secondary helper function to help me with this:

function refValues($arr)
{ 
        $refs = array();

        foreach ($arr as $key => $value)
        {
            $refs[$key] = &$arr[$key]; 
        }

        return $refs; 
}

and changed my previous function from:

call_user_func_array(array($this->stmt, "bind_param"), $this->values); 

to:

call_user_func_array(array($this->stmt, "bind_param"), refValues($this->values)); 

This way my db functions keep working in PHP 5.2/5.3 servers.