Online PHP editor | refs for rBmui

<?php $vars = array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j'); $start = microtime(true); for($k=0;$k<100;$k++) { $str = ltrim(strrev(chunk_split(implode(array_reverse($vars)), 3, ';')),';'); } $end = microtime(true); echo $end - $start; echo "\n\n"; $start = microtime(true); for($k=0;$k<100;$k++) { $size = sizeOf($vars); for ($i = $size-3; $i > 0; $i-=3) { array_splice($vars,$i,0,";"); } } $end = microtime(true); echo $end - $start; echo "\n\n"; $start = microtime(true); for($k=0;$k<100;$k++) { $array = array_reverse(range('a', 'h')); // reverse $array = array_chunk($array, 3); // cut by threes $string = ''; foreach ($array as $value) { $string .= implode($value); // glue them if(count($value) == 3) { // if still three, add a semi $string .= ';'; } } $string = strrev($string); // then reverse them again } $end = microtime(true); echo $end - $start;