没有匿名功能的解决方法

Question

I have PHP 5.2 and am trying to use this anonymous function

$values = array_map(function ($value) use ($link){
    if($value == null) return null;
    return mysqli_real_escape_string($link, (string)$value);
}, array_values($input));

Server's response

PHP Error Message Parse error: syntax error, unexpected T_FUNCTION in MY FILE on line 16

So server wont read this anonymous function, so i gotta define it right?

$func = function ($value) use ($link){
    if($value == null) return null;
    return mysqli_real_escape_string($link, (string)$value);
};
$values = array_map($func, array_values($input));

Still now working. Any help?

Answer 1

Anonymous functions became available as of PHP 5.3, so 5.2 doesn't have them

This should work in all versions of PHP

function array_stuff($value){
    global $link; // I hate this sooo much but necessary evil here
    if($value == null) return null;
    return mysqli_real_escape_string($link, (string)$value);
};
$values = array_map('array_stuff', array_values($input));