<?php $empty_func = function($a){ }; $new_arr = array_map(function($a) {return $a[0];}, $argv); $callback = function($b){return $b['id'];}; $long_callback = function($c)use ($d,&$e){ return $c['id']; }; function doSomething($a,$b) { echo 'Hello world!'; }
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