Online PHP editor | refs for iktNV

<?php $v1 = 5; $v2 = '5-4'; $time = microtime(1); $i = 0; while($i++ < 1000000) echo ' ',' ',' ',' ',' '; echo (microtime(1)-$time)." seconds for commas"; echo "\n"; $time = microtime(1); $i = 0; while($i++ < 1000000) echo ' '.' '.' '.' '.' '; echo (microtime(1)-$time)." seconds for dot";