GlobIterator::count()
(PHP 5>=5.3.0,PHP 7)
Get the number of directories and files
说明
public GlobIterator::count(void) : 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 aninteger.
范例
Example#1GlobIterator::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
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 ... } ?>