Online PHP editor | output for nFTkq

<?php /* chdir($_SERVER{'DOCUMENT_ROOT'}."/test/"); // change working directory so that glob's output excludes the path $flvs=array_map(function($f){return basename($f,'.flv');},glob("*.flv")); // store .flv's and strip suffixes $mp4s=array_map(function($f){return basename($f,'.mp4');},glob("*.mp4")); // store .mp4's and strip suffixes $need_conversion=array_diff($flvs,$mp4s); // run ffmpeg() on these suffix-free files */ $files=['aaaa.flv','aaaa.mp4','bbbb.flv','bbbb.mp4','cccc.flv','dddd.flv','dddd.mp4']; $flvs=array_map(function($f){return basename($f,'.flv');},preg_grep('/flv$/',$files)); $mp4s=array_map(function($f){return basename($f,'.mp4');},preg_grep('/mp4$/',$files)); var_export(array_diff($flvs,$mp4s)); // just re-add the suffix ".flv" when