increase loop performance by assign count() to variable

[samsonasik]

test :

$data = range(1, 100000);

$time_start1 = microtime(true);
for ($i = 0; $i < count($data); $i++) {

}
$time_end1 = microtime(true);
$time1 = $time_end1 - $time_start1;

echo 'uses count() in iteration take time : ' . $time1;
echo "\r\n";

$time_start2 = microtime(true);
for ($i = 0, $count = count($data); $i < $count; $i++) {

}
$time_end2 = microtime(true);
$time2 = $time_end2 - $time_start2;

echo 'uses assignment of count() before iterated first take time ' . $time2;
echo "\r\n";

Result :

uses count() directly in iteration take time : 0.11619091033936
uses assignment of count() before iterated first take time 0.017376184463501

[Martin-P]

Count is a noun here not a verb, so it should be $insertStartCount instead of $countInsertStart.

[samsonasik]

done ;)