PHP 5.3 lambda anonymous function not working

Question

I can't figure out what's wrong here. Here's my test.php file:

<?php
error_reporting(E_ALL);
echo phpversion();
$arr = array ();

$attrs = array_filter((array)$arr, function($v) {
    return ($v || $v === 0 || $v === '0');
});

The output of this script is:

5.3.3 Warning: array_filter() expects parameter 2 to be a valid callback, no array or string given in /path/test.php on line 8

How can that be? I thought PHP 5.3 supported lambdas.

It works in my local environment, but in production, I get this. Does anyone have any idea what I would check in my PHP configuration that might be somehow blocking the use of lambdas? Honestly, I can't even believe what I'm seeing. I makes absolutely no sense to me. — UncleCheese
– UncleCheese, Commented Jun 29, 2012 at 13:53
If I crank down my error reporting to E_ERROR, it works. But that's not ideal. — UncleCheese
– UncleCheese, Commented Jun 29, 2012 at 14:30

UncleCheese · Accepted Answer · 2012-06-29 15:49:04Z

3

This was related to a bug in eAccelerator, which had a problem caching opcode that used lambdas. Updated to the latest version of eAccelerator and it is fixed.

answered Jun 29, 2012 at 15:49

UncleCheese

1,5849 silver badges14 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

PHP 5.3 lambda anonymous function not working

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related