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<title>Luhn's algorithm speed test</title>
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<div>
<pre>
<?php
include_once 'Luhn.php';
$luhn = new Luhn();
// New method, see http://www.phpclasses.org/discuss/package/8471/thread/1/
$startTime = microtime(true);
$number = "38972438297432";
for($i = 0; $i < 1000000; $i++){
$checkDigit = $luhn->calculate($number.$i);
}
$endTime = microtime(true);
echo "time1: ".($endTime - $startTime)." sec\n";
// Old method
$startTime = microtime(true);
$number = "38972438297432";
for($i = 0; $i < 1000000; $i++){
$checkDigit = $luhn->calculateOld($number.$i);
}
$endTime = microtime(true);
echo "time2: ".($endTime-$startTime)." sec\n";
?>
</pre>
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