打开一个目录,列出其文件,重置目录句柄,再次列出其文件,然后关闭:
<?php
$dir = "/images/";
// Open a directory, and read its contents
if (is_dir($dir)){
if ($dh = opendir($dir)){
// List files in images directory
while (($file = readdir($dh)) !== false){
echo "filename:" . $file . "<br>";
}
rewinddir();
// List once again files in images directory
while (($file = readdir($dh)) !== false){
echo "filename:" . $file . "<br>";
}
closedir($dh);
}
}
?>
结果:
filename: cat.gif
filename: dog.gif
filename: horse.gif
filename: cat.gif
filename: dog.gif
filename: horse.gif
rewinddir() 函数重置由以下命令创建的目录句柄打开目录()。
rewinddir(
dir)
Parameter | Description |
---|---|
dir | Optional. Specifies the directory handle resource previously opened with opendir(). If this parameter is not specified, the last link opened by opendir() is assumed |
返回值: | 成功时为 NULL,失败时为 FALSE |
---|---|
PHP 版本: | 4.0+ |
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