我有一个名为“inspections”的文件夹，其中有许多名为“location 1”，“location 2”，“location 3”等的子文件夹，每个子文件夹中包含大约10-20个.png图像。
我要做的是读取“inspections”文件夹的目录，然后读取每个文件夹中的所有图像文件，然后在index.php网站上将它们作为图库返回。问题是我没有收到任何错误消息，但脚本没有返回任何内容。我相信问题在于为每个子文件夹生成$ files变量，因为我部署了相同的脚本来读取另一个站点上的文件夹内容。
也许有人可以指出我正确的方向？
<?php
$dir = './inspections/';
if ($handle = opendir($dir))
{
$blacklist = array('.', '..', 'default', 'default.php', 'desc.txt');
while (false !== ($folder = readdir($handle)))
{
if (!in_array($folder, $blacklist))
{
if (file_exists($dir . $folder . '/desc.txt'))
{
while (false !== ($file = readdir($handle)))
{
if (!in_array($file, $blacklist))
{
$chain = file_get_contents($dir . $folder . '/chain.txt');
$website = file_get_contents($dir . $folder . '/website.txt');
$location = file_get_contents($dir . $folder . '/location.txt');
$desc = file_get_contents($dir . $folder . '/desc.txt', NULL, NULL, 0, 250) . '...';
echo "
<!-- Post -->
<div class=\"post\">
<div class=\"user-block\">
<img class=\"img-circle img-bordered-sm\" src=\"../dist/img/logo/logo_".$chain."\" alt=\"\">
<span class=\"username\">
<a href=\"".$website."\" target=\"_blank\">".$folder."</a>
</span>
<span class=\"description\"><i class=\"fa fa-map-pin\"></i> ".$location." - Posted on ". $date . "</span>
</div>
<!-- /.user-block -->
<p>".$desc."</p>
<div class=\"lightBoxGallery\">
<a href=\"".$dir . $folder . "/".$file."\" title=\"".$file."\" data-gallery=\"\"><img src=\"".$dir . $folder . "/".$file."\" style=\"height:100px; width:100px;\"></a>
</div>
";
}
}
}
}
}
closedir($handle);
}
?>
编辑： 在@JazZ建议之后，我已经调整了代码并且它现在运行良好，但是，假设一个人不想显示已调整大小的图片本身，而是显示存储在子文件夹中的缩略图（例如./location1/thumbs/），我会这样做吗？
<?php
$dir = './inspections/';
if ($handle = opendir($dir)) {
$blacklist = array('.', '..', 'default', 'default.php', 'desc.txt');
while (false !== ($folder = readdir($handle))) {
if (!in_array($folder, $blacklist)) {
echo "
<!-- Post -->
<div class=\"post\">
<div class=\"user-block\">
<img class=\"img-circle img-bordered-sm\" src=\"../dist/img/logo/gallery_icon_".$chain.".jpg\" alt=\"\">
<span class=\"username\">
<a href=\"".$website."\" target=\"_blank\">".$hotel_name."</a>".$status."
</span>
<span class=\"description\"><i class=\"fa fa-map-pin\"></i> ".$location." - Posted on ".date('jS F, Y - H:m', strtotime($posted_on))."</span>
</div>
<!-- /.user-block -->
<p>".$desc."</p>
<div class=\"lightBoxGallery\">
";
foreach (glob($dir . $folder . "/*.jpg") as $filename) {
echo "
<a href=\"".$filename."\" title=\"\" data-gallery=\"\"><img src=\"".$filename."\" style=\"height:100px; width:100px;\"></a>";
}
echo "</div>
</div>
<!-- /. POST -->
";
}
}
closedir($handle);
}
?>
答案 0 :(得分：1)
我认为你的问题来自：
while (false !== ($file = readdir($handle))) // it reads again the same directory as it did in the first while loop
尝试用
替换它if ($sub_handle = opendir($dir . $folder)) {
while (false !== ($file = readdir($sub_handle))) {
...
}
closedir($sub_handle);
}
另外，在您的情况下，我会使用php glob() function
查看您案例的工作示例：
$dir = './inspections/';
if ($handle = opendir($dir)) {
$blacklist = array('.', '..', 'default', 'default.php', 'desc.txt');
while (false !== ($folder = readdir($handle))) {
if (!in_array($folder, $blacklist)) {
foreach (glob($dir . $folder . "/*.png") as $filename) {
echo "$filename was found !";
echo "\r\n";
}
}
}
closedir($handle);
}
输出：
./inspections/location_4/img_1.png was found ! ./inspections/location_4/img_2.png was found ! ./inspections/location_4/img_3.png was found ! ./inspections/location_4/img_4.png was found ! ./inspections/location_4/img_5.png was found ! ./inspections/location_4/img_6.png was found ! ./inspections/location_3/img_1.png was found ! ./inspections/location_3/img_2.png was found ! ./inspections/location_3/img_3.png was found ! ./inspections/location_3/img_4.png was found ! ./inspections/location_3/img_5.png was found ! ./inspections/location_3/img_6.png was found ! ./inspections/location_2/img_1.png was found ! ./inspections/location_2/img_2.png was found ! ./inspections/location_2/img_3.png was found ! ./inspections/location_2/img_4.png was found ! ./inspections/location_2/img_5.png was found ! ./inspections/location_2/img_6.png was found ! ./inspections/location_1/img_1.png was found ! ./inspections/location_1/img_2.png was found ! ./inspections/location_1/img_3.png was found ! ./inspections/location_1/img_4.png was found ! ./inspections/location_1/img_5.png was found ! ./inspections/location_1/img_6.png was found !
修改
要在/ inspections / location1 / thumbs /目录中循环，这将起作用：
foreach (glob($dir . $folder . "/thumbs/*.png") as $filename) {
echo "$filename was found !";
echo "\r\n";
}
<强> RE-修改
要使用glob()函数对多个文件夹进行全局处理，您的代码应如下所示：
foreach (glob($dir.$folder."{/thumbs/*.png,/*.png}", GLOB_BRACE) as $filename) {
echo "$filename was found !";
echo "\r\n";
}
答案 1 :(得分：0)
也许以下功能有帮助。它也有点评论。它以递归方式扫描目录（在这种情况下，从每个目录/子目录中提取图像文件）。
<?php
$rootPath = './inspections/';
$regex = "#(\.png$)|(\.jpg$)|(\.jpeg$)|(\.tiff$)|(\.gif$)#";
/**
* @param string $directory => DIRECTORY TO SCAN
* @param string $regex => REGULAR EXPRESSION TO BE USED IN MATCHING FILE-NAMES
* @param string $get => WHAT DO YOU WANT TO GET? 'dir'= DIRECTORIES, 'file'= FILES, 'both'=BOTH FILES+DIRECTORIES
* @param bool $useFullPath => DO YOU WISH TO RETURN THE FULL PATH TO THE FOLDERS/FILES OR JUST THEIR BASE-NAMES?
* @param array $dirs => LEAVE AS IS: USED DURING RECURSIVE TRIPS
* @return array
*/
function scanDirRecursive($directory, $regex=null, $get="file", $useFullPath=false, &$dirs=[], &$files=[]) {
$iterator = new DirectoryIterator ($directory);
foreach($iterator as $info) {
$fileDirName = $info->getFilename();
if ($info->isFile () && !preg_match("#^\..*?#", $fileDirName)) {
if($get == 'file' || $get == 'both'){
if($regex) {
if(preg_match($regex, $fileDirName)) {
if ($useFullPath) {
$files[] = $directory . DIRECTORY_SEPARATOR . $fileDirName;
}
else {
$files[] = $fileDirName;
}
}
}else{
if($useFullPath){
$files[] = $directory . DIRECTORY_SEPARATOR . $fileDirName;
}else{
$files[] = $fileDirName;
}
}
}
}else if ($info->isDir() && !$info->isDot()) {
$fullPathName = $directory . DIRECTORY_SEPARATOR . $fileDirName;
if($get == 'dir' || $get == 'both') {
$dirs[] = ($useFullPath) ? $fullPathName : $fileDirName;
}
scanDirRecursive($fullPathName, $regex, $get, $useFullPath, $dirs, $files);
}
}
if($get == 'dir') {
return $dirs;
}else if($get == 'file'){
return $files;
}
return ['dirs' => $dirs, 'files' => $files];
}
$images = scanDirRecursive($rootPath, $regex, 'file', true);
var_dump($images);