GlobIterator::count

(PHP 5 >= 5.3.0, PHP 7)

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

说明

public int GlobIterator::count ( void )

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 integer.

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

User Contributed Notes

TwystO 05-Jul-2016 07:49
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 ...
}
?>