What is wrong with this PHP function.

Posted by [email protected] on Stack Overflow See other posts from Stack Overflow or by [email protected]
Published on 2010-04-28T12:44:17Z Indexed on 2010/04/28 16:53 UTC
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I am new to PHP and regular expression. I was going thorugh some online examples and came with this example:

<?php
echo preg_replace_callback('~-([a-z])~', function ($match) {
    return strtoupper($match[1]);
}, 'hello-world');
// outputs helloWorld
?>

in php.net but to my surprise it does not work and keep getting error:

PHP Parse error:  parse error, unexpected T_FUNCTION

Why get error ?

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