GlobIterator::count

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

GlobIterator::count — Get the number of directories and files

说明

public GlobIterator::count ( ) : int

Gets the number of directories and files found by the glob expression.

参数

此函数没有参数。

返回值

The number of returned directories and files, as an int.

范例

Example #1 GlobIterator::count() example


<?php
$iterator = new GlobIterator('*.xml');

printf("Matched %d item(s)\r\n", $iterator->count());
?>

以上例程的输出类似于：

Matched 8 item(s)

参见

GlobIterator::__construct() - Construct a directory using glob
count() - 计算数组中的单元数目，或对象中的属性个数
glob() - 寻找与模式匹配的文件路径

User Contributed Notes

TwystO 05-Jul-2016 10:49


As stated here https://bugs.php.net/bug.php?id=55701 the count() method can lead to errors.



For example this won't works if no files are found in the target directory :



<?php

$iterator = new \GlobIterator($ftpDirectory . '/*.*', FilesystemIterator::KEY_AS_FILENAME);



if($iterator->count()) {

    foreach($iterator as $filePath) {

        // do some stuff ...

    }

}

?>



A workaround to this bug could be :



<?php

foreach(new \GlobIterator($ftpDirectory . '/*.*', FilesystemIterator::KEY_AS_FILENAME) as $filePath) {

    // do some stuff ...

}

?>