在 PHP 中递归地收集图像文件路径 [英] Gather image file paths Recursively in PHP

问题描述

我正在研究一个相当大的 PHP 类，它通过命令行执行大量图像优化工作，您基本上向程序传递 Image path 或 Folder path 里面有多个图像.然后，它通过最多 5 个其他优化图像的命令行程序运行文件.

I am working on a pretty large PHP class that does a lot of stuff with Image Optimization from the Command line, you basically pass the program an Image path or a Folder path that has multiple images inside of it. It then runs the files through up to 5 other command line programs that optimize images.

下面是收集图像路径的循环的一部分，如果路径是文件夹而不是图像路径，它将遍历文件夹中的所有图像并将它们添加到图像数组中.

Below is part of a loop that gathers the images paths, if the path is a Folder instead of an image path, it will iterate over all the images in the folder and add them to the image array.

到目前为止，我已经为 1 个文件夹中的单个图像和图像提供了一切工作.我想修改下面的这一部分，以便它可以递归地深入到 1 个文件夹以获取图像路径.

So far I have everything working for single images and images in 1 folder. I would like to modify this section below so it could recursively go deeper then 1 folder to get the image paths.

有人可以告诉我如何在下面修改它来完成这个吗?

Could someone possibly show me how I could modify this below to accomplish this?

// Get files 
if (is_dir($path))
{
    echo 'the path is a directory, grab images in this directory';
    $handle = opendir($path);
    // FIXME : need to run recursively
    while(FALSE !== ($file = readdir($handle))) 
    {
        if(is_dir($path.self::DS.$file))
        {
            continue;
        }
        if( ! self::is_image($path.self::DS.$file))
        {
            continue;
        }
        $files[] = $path.self::DS.$file;
    }
    closedir($handle);



}else{
    echo 'the path is an Image and NOT a directory';
    if(self::is_image($path))
    {   
        echo 'assign image Paths to our image array to process = '. $path. '<br><br>';
        $files[] = $path;
    }
}

if (!count($files))
{
    throw new NoImageFoundException("Image not found : $path");
}

<小时>

更新

@Chris 的回答让我查看了文档，我发现了一个我修改为似乎可行的示例

---

UPDATE

@Chris's answer got me looking at the Docs and I found an example that I modified to this that seems to work

public static function find_recursive_images($path) {
    $iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path),
                                              RecursiveIteratorIterator::CHILD_FIRST);
    foreach ($iterator as $path) {
      if ($path->isDir()) {
         //skip directories
         continue;
      } else {
         $files[] = $path->__toString();
      }
    }
    return $files;
}

...

$files = self::find_recursive_images($path);
echo '<pre>';
print_r($files);
echo '</pre>';
exit();

输出只是文件名和这样的路径，这是我的最终目标，到目前为止，这很完美，但如果有更好的方法，我会全力改进

The output is JUST the filenames and there path like this which is my ultimate goal, so far this works perfect but as always if there is a better way I am all for improving

(
    [0] => E:Server\_ImageOptimizeimg	estfilescss3-generator.png
    [1] => E:Server\_ImageOptimizeimg	estfilescss3-please.png
    [2] => E:Server\_ImageOptimizeimg	estfilescss3-tools-10.png
    [3] => E:Server\_ImageOptimizeimg	estfilesfb.jpg
    [4] => E:Server\_ImageOptimizeimg	estfilesmysql.gif
    [5] => E:Server\_ImageOptimizeimg	estfilesOriginalImagescss3-generator.png
    [6] => E:Server\_ImageOptimizeimg	estfilesOriginalImagescss3-please.png
    [7] => E:Server\_ImageOptimizeimg	estfilesOriginalImagescss3-tools-10.png
    [8] => E:Server\_ImageOptimizeimg	estfilesOriginalImagesfb.jpg
    [9] => E:Server\_ImageOptimizeimg	estfilesOriginalImagesmysql.gif
    [10] => E:Server\_ImageOptimizeimg	estfilesOriginalImagessupport-browsers.png
    [11] => E:Server\_ImageOptimizeimg	estfilessupport-browsers.png
)

推荐答案

虽然 andreas 的回答可能有效，但你也可以让 PHP 5 的 RecursiveDirectoryIterator 为您完成这项工作并使用更多的 OOP 方法.

While andreas' answer probably works, you can also let PHP 5's RecursiveDirectoryIterator do that work for you and use a more OOP approach.

这是一个简单的例子:

$it = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path));

while ($it->valid())
{
  if ($it->isDot())
    continue;

  $file = $it->current();
  if (self::is_image($file->pathName))
  {
    $files[] = $file->pathName;
  }

  $it->next();
}

或者，您可以试试这个(从 Zend_Translate_Adapter 复制):

Alternatively, you could try this (copied from Zend_Translate_Adapter):

$it = new RecursiveIteratorIterator(
                new RecursiveRegexIterator(
                    new RecursiveDirectoryIterator($dir, RecursiveDirectoryIterator::KEY_AS_PATHNAME),
                    '/^(?!.*(.svn|.cvs)).*$/', RecursiveRegexIterator::MATCH
                ),
                RecursiveIteratorIterator::SELF_FIRST
            );

foreach ($it as $dir => $info)
{
  var_dump($dir); 
}

干杯

克里斯

这篇关于在 PHP 中递归地收集图像文件路径的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！