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PHP `for`s
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<?php | |
$elements = array(); | |
//// | |
// An array of 10,000 elements with random string values | |
//// | |
for($i = 0; $i < 10000; $i++) { | |
$elements[] = (string)rand(10000000, 99999999); | |
} | |
$time_start = microtime(true); | |
$el = null; | |
//// | |
// for test | |
//// | |
$numb = count($elements); | |
for($i = 0; $i < $numb; $i++) { | |
$el = $elements[$i]; | |
} | |
$time_end = microtime(true); | |
$for_time = $time_end - $time_start; | |
$time_start = microtime(true); | |
//// | |
// for with count() inside loop test | |
//// | |
for($i = 0; $i < count($elements); $i++) { | |
$el = $elements[$i]; | |
} | |
$time_end = microtime(true); | |
$for_count_time = $time_end - $time_start; | |
$time_start = microtime(true); | |
//// | |
// foreach test | |
//// | |
foreach($elements as $element) { | |
$el = $element; | |
} | |
$time_end = microtime(true); | |
$foreach_time = $time_end - $time_start; | |
echo "For took: " . number_format($for_time * 1000, 3) . "ms\n"; | |
echo "For with count() took: " . number_format($for_count_time * 1000, 3) . "ms\n"; | |
echo "Foreach took: " . number_format($foreach_time * 1000, 3) . "ms\n"; | |
?> |
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