opendir scandir php php – readdir和scandir

只是得到结果(没有做任何事情)，readdir是最快更快：

$count = 10000;

$dir = '/home/brati';

$startScan = microtime(true);

for ($i=0;$i

$array = scandir($dir);

}

$endScan = microtime(true);

$startRead = microtime(true);

for ($i=0;$i

$handle = opendir($dir);

while (false !== ($entry = readdir($handle))) {

// We do not know what to do

}

}

$endRead = microtime(true);

echo "scandir: " . ($endScan-$startScan) . "\n";

echo "readdir: " . ($endRead-$startRead) . "\n";

给予：

== RUN 1 ==

scandir: 5.3707950115204

readdir: 5.006147146225

== RUN 2 ==

scandir: 5.4619920253754

readdir: 4.9940950870514

== RUN 3 ==

scandir: 5.5265231132507

readdir: 5.1714680194855

当然，这取决于你打算做什么。如果你必须用scandir()写另一个循环，它会更慢。