Online PHP editor | refs for rMvMt

<?php namespace { $s = 1000; $start = microtime(true); $i = $s; while($i--) { $a = true; } $end = microtime(true); $g1 = $end-$start; echo 'Global true: ' . sprintf('%f.20', $g1) . "\n"; $start = microtime(true); $i = $s; while($i--) { $a = \true; } $end = microtime(true); $g2 = $end-$start; echo 'Global \true: ' . sprintf('%f.20', $g2) . "\n"; } namespace foo { $start = microtime(true); $i = $s; while($i--) { $a = true; } $end = microtime(true); $n1 = $end-$start; echo 'Namespace true: ' . sprintf('%f.20', $n1) . "\n"; $start = microtime(true); $i = $s; while($i--) { $a = \true; } $end = microtime(true); $n2 = $end-$start; echo 'Namespace \true: ' . sprintf('%f.20', $n2) . "\n"; echo 'Namespace relative difference true to \true ' . sprintf('%f.10', ($n2-$n1)/$n1) . "%\n"; }