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<?php $files = array('Ablah', 'Bblah'); $files = array_filter($files, function ( &$path ) { $path = strtolower($path); // Drivers should be lowercase return true; }); print_r($files);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: {closure}(): Argument #1 ($path) must be passed by reference, value given in /in/5LFhg on line 5 Warning: {closure}(): Argument #1 ($path) must be passed by reference, value given in /in/5LFhg on line 5 Array ( [0] => Ablah [1] => Bblah )

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