php noob here - 我拼凑了这个脚本来显示一个带有opendir的文件夹中的图像列表,但我无法弄清楚如何(或在哪里)按字母顺序对数组进行排序
<?php
// opens images folder
if ($handle = opendir('Images')) {
while (false !== ($file = readdir($handle))) {
// strips files extensions
$crap = array(".jpg", ".jpeg", ".JPG", ".JPEG", ".png", ".PNG", ".gif", ".GIF", ".bmp", ".BMP", "_", "-");
$newstring = str_replace($crap, " ", $file );
//asort($file, SORT_NUMERIC); - doesnt work :(
// hides folders, writes out ul of images and thumbnails from two folders
if ($file != "." && $file != ".." && $file != "index.php" && $file != "Thumbnails") {
echo "<li><a href=\"Images/$file\" class=\"thickbox\" rel=\"gallery\" title=\"$newstring\"><img src=\"Images/Thumbnails/$file\" alt=\"$newstring\" width=\"300\" </a></li>\n";}
}
closedir($handle);
}
?>
非常感谢任何建议或指示!
答案 0 :(得分:22)
在对文件进行排序之前,您需要先将文件读入数组。怎么样?
<?php
$dirFiles = array();
// opens images folder
if ($handle = opendir('Images')) {
while (false !== ($file = readdir($handle))) {
// strips files extensions
$crap = array(".jpg", ".jpeg", ".JPG", ".JPEG", ".png", ".PNG", ".gif", ".GIF", ".bmp", ".BMP", "_", "-");
$newstring = str_replace($crap, " ", $file );
//asort($file, SORT_NUMERIC); - doesnt work :(
// hides folders, writes out ul of images and thumbnails from two folders
if ($file != "." && $file != ".." && $file != "index.php" && $file != "Thumbnails") {
$dirFiles[] = $file;
}
}
closedir($handle);
}
sort($dirFiles);
foreach($dirFiles as $file)
{
echo "<li><a href=\"Images/$file\" class=\"thickbox\" rel=\"gallery\" title=\"$newstring\"><img src=\"Images/Thumbnails/$file\" alt=\"$newstring\" width=\"300\" </a></li>\n";
}
?>
编辑:这与您提出的问题无关,但您也可以使用pathinfo()功能对文件扩展名进行更通用的处理。您不需要硬编码的扩展数组,您可以删除任何扩展名。
答案 1 :(得分:10)
opendir()
opendir()
不允许对列表进行排序。您必须手动执行排序。为此,首先将所有文件名添加到数组中,然后使用sort()
对其进行排序:
$path = "/path/to/file";
if ($handle = opendir($path)) {
$files = array();
while ($files[] = readdir($dir));
sort($files);
closedir($handle);
}
然后使用foreach
列出它们:
$blacklist = array('.','..','somedir','somefile.php');
foreach ($files as $file) {
if (!in_array($file, $blacklist)) {
echo "<li>$file</a>\n <ul class=\"sub\">";
}
}
scandir()
使用scandir()
可以轻松实现这一目标。它默认为您执行排序。使用以下代码可以实现相同的功能:
$path = "/path/to/file";
$blacklist = array('somedir','somefile.php');
// get everything except hidden files
$files = preg_grep('/^([^.])/', scandir($path));
foreach ($files as $file) {
if (!in_array($file, $blacklist)) {
echo "<li>$file</a>\n <ul class=\"sub\">";
}
}
DirectoryIterator
(首选)$path = "/path/to/file";
$blacklist = array('somedir','somefile.php');
foreach (new DirectoryIterator($path) as $fileInfo) {
if($fileInfo->isDot()) continue;
$file = $path.$fileInfo->getFilename();
echo "<li>$file</a>\n <ul class=\"sub\">";
}
答案 2 :(得分:3)
这就是我这样做的方式
if(!($dp = opendir($def_dir))) die ("Cannot open Directory.");
while($file = readdir($dp))
{
if($file != '.')
{
$uts=filemtime($file).md5($file);
$fole_array[$uts] .= $file;
}
}
closedir($dp);
krsort($fole_array);
foreach ($fole_array as $key => $dir_name) {
#echo "Key: $key; Value: $dir_name<br />\n";
}
答案 3 :(得分:1)
注意:将其移动到foreach循环中,以便正确重命名新闻字符串变量。
// strips files extensions
$crap = array(".jpg", ".jpeg", ".JPG", ".JPEG", ".png", ".PNG", ".gif", ".GIF", ".bmp", ".BMP", "_", "-");
$newstring = str_replace($crap, " ", $file );
答案 4 :(得分:0)
$directory = scandir('Images');