目录中每个文件的循环代码

Question

我有一个图片目录,我想循环并做一些文件计算.它可能只是缺乏睡眠,但我如何使用PHP查看给定目录,并使用某种for循环遍历每个文件？

谢谢!

Answer 1

scandir:

$files = scandir('folder/');
foreach($files as $file) {
  //do your work here
}

或者glob可能更适合您的需求:

$files = glob('folder/*.{jpg,png,gif}', GLOB_BRACE);
foreach($files as $file) {
  //do your work here
}

Answer 2

查看DirectoryIterator类.

从该页面上的一条评论:

// output all files and directories except for '.' and '..'
foreach (new DirectoryIterator('../moodle') as $fileInfo) {
    if($fileInfo->isDot()) continue;
    echo $fileInfo->getFilename() . "<br>\n";
}

递归版本是RecursiveDirectoryIterator.

Answer 3

寻找函数glob():

<?php
$files = glob("dir/*.jpg");
foreach($files as $jpg){
    echo $jpg, "\n";
}
?>