ak4n

<?php
/**
 * Execution time check for: (list/each,foreach) vs (array_walk, array_map, array_reduce, array_filter)
 * @docs to read
 *  http://www.giorgiosironi.com/2010/02/stop-writing-foreach-cycles.html
 *  http://www.pastie.org/829318
 *  http://php.net/manual/en/function.array-walk.php#112722
 *  http://zaemis.blogspot.com/2013/06/building-array-with-arrayreduce.html
 *  (!) http://stackoverflow.com/questions/2473989/list-of-big-o-for-php-functions/2484455#2484455
 *  http://www.faieta.net/wp/performance-implications-of-closures-in-php/

jaytaph

86937	isset
43159	echo
31697	empty
29252	substr
26146	count
24248	is_array
22572	strlen
19365	sprintf
18090	unset
16584	str_replace