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anubisthejackle/not-empty-vs-variable.php

Created March 18, 2016 15:32
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!empty($x) vs. $x
Raw
not-empty-vs-variable.php
<?php
$a = null;
$start = microtime(true);
for($i = 0; $i < 1000000000; $i++){
if( !empty( $a ) ){}
}
$empty = microtime(true) - $start;
$start = microtime(true);
for($i = 0; $i < 1000000000; $i++){
if( $a ){}
}
$no_empty = microtime(true) - $start;
$difference = ($empty / $no_empty) * 100;
echo <<<HTML
##########################
Empty: $empty
No Empty: $no_empty
Percent Faster: $difference%
##########################
HTML;
/*
##########################
Empty: 45.424256086349
No Empty: 31.626209974289
Percent Faster: 143.62851610508%
##########################
*/
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