unexpected T_FUNCTION with php 5.2.17 but fine on localhost and php 5.3.10

Question

I\"m getting an unexpected T_FUNCTION php error after uploading my Wordpress files to a server running php version 5.2.17.

The theme works fine on localhost (with MA

Answer 1

You cannot have anonymous functions in PHP less than 5.3

Rework your code so that it does not involve anonymous functions and it should work on your older server.

Answer 2

anonymous functions available from PHP 5.3.0

Answer 3

add_action()'s second parameter is of type callback.

Pre 5.3, this is usually a string representing a function:

add_action('init', 'myFunction');

function myFunction() { echo 'init'; }

There are alternatives such as create_function and other syntaxes to use when dealing with objects.

5.3 onward, anonymous functions are allowed:

add_action('init', function() { echo 'init'; });