Online PHP editor | refs for a3Jn4

<?php $values = range(1, 10000); $c = 0; $start = microtime(true); $l = count($values); $i = 0; while ($i < $l) { $c++; $i++; } $end = microtime(true); printf('while $i++ %d iterations in: %f sec', $c, ($end - $start)); echo PHP_EOL; $values = range(1, 10000); $c = 0; $start = microtime(true); $l = count($values); for ($i = 0; $i < $l; $i++) { $c++; } $end = microtime(true); printf('for $i++ %d iterations in: %f sec', $c, ($end - $start)); echo PHP_EOL; $values = range(1, 10000); $c = 0; $start = microtime(true); foreach ($values as $val) { $c++; } $end = microtime(true); printf('foreach %d iterations in: %f sec', $c, ($end - $start)); echo PHP_EOL; $values = range(1, 10000); $c = 0; $start = microtime(true); $value = reset($values); while ($value) { $c++; $value = next($values); } $end = microtime(true); printf('while reset, next %d iterations in: %f sec', $c, ($end - $start)); echo PHP_EOL; $values = range(1, 10000); $c = 0; $start = microtime(true); while ($val = current($values)) { $c++; next($values); } $end = microtime(true); printf('while current, next %d iterations in: %f sec', $c, ($end - $start)); echo PHP_EOL; $values = range(1, 10000); $c = 0; $start = microtime(true); $value = current($values); do{ $c++; }while($value = next($values)); $end = microtime(true); printf('do while next %d iterations in %f sec', $c, ($end - $start)); echo PHP_EOL; $values = range(1, 10000); $c = 0; $start = microtime(true); while ($values) { $c++; array_shift($values); } $end = microtime(true); printf('while array_shift %d iterations in: %f sec', $c, ($end - $start)); echo PHP_EOL; $values = range(1, 10000); $c = 0; $start = microtime(true); $values = array_reverse($values); while ($values) { $c++; array_pop($values); } $end = microtime(true); printf('while array_pop %d iterations in: %f sec', $c, ($end - $start)); echo PHP_EOL;