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? ??? ?? PHP ???? PHP? ???? ????? ?? ?? ???? ??: Opendir/Readdir? FilesystemIterator?

PHP? ???? ????? ?? ?? ???? ??: Opendir/Readdir? FilesystemIterator?

Nov 05, 2024 am 03:11 AM

How to Count Files in a Directory with PHP: Opendir/Readdir vs. FilesystemIterator?

PHP? ???? ????? ?? ?? ??

PHP?? ???? ??? ? ? ? ?? ?? ?? ?? ???? ?? ??? ??? ????. ?? ???? ?? ?? ?? ??? ??? ? ????.

?? 1: Opendir() ? Readdir() ??

???? ?? ???? opendir() ? readdir( ) ??. ??? ???? ???? ???? ?? ??? ??? ?? ?? ??? ?????. ???? ?? ???? ? ? ???:

<code class="php">$dir = opendir('uploads/');
$i = 0;
while (false !== ($file = readdir($dir))) {
    if (!in_array($file, array('.', '..') and !is_dir($file)) $i++;
}
echo "There were $i files";</code>

? ??? ????? ?? ????? ???? ? ????.

?? 2: SPL FilesystemIterator ??

? ???? ??? SPL FilesystemIterator ???? ???? ????. ? ???? ???? ?? ???? ???? ???? ??? ?????. ?? ??? ????.

<code class="php">$fi = new FilesystemIterator(__DIR__, FilesystemIterator::SKIP_DOTS);
printf("There were %d Files", iterator_count($fi));</code>

? ????:

  • __DIR__? ?? ???? ??? ?????.
  • FilesystemIterator::SKIP_DOTS? ???? ??? ??? ????? ?????. (???? ??).
  • iterator_count()? ????? ?? ? ?? ?? ?????.

? ???? ??? ????? ????? ?? ??? ???? ?? ?? ??? ???? ?????. ????.

? ??? PHP? ???? ????? ?? ?? ???? ??: Opendir/Readdir? FilesystemIterator?? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

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