PHP rewinddir () function
Examples
Open a directory that lists the files, directory handle to recharge, re-list the files and shuts down:
<?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);
}
}
?>
$dir = "/images/";
// Open a directory, and read its contents
if (is_dir($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);
}
}
?>
result:
filename: cat.gif
filename: dog.gif
filename: horse.gif
filename: cat.gif
filename: dog.gif
filename: horse.gif
filename: dog.gif
filename: horse.gif
filename: cat.gif
filename: dog.gif
filename: horse.gif
Definition and Usage
rewinddir () function is reset by opendir () directory handle created.
grammar
rewinddir( dir_handle );
| 参数 | 描述 |
|---|---|
| dir_handle | 可选。指定之前由 opendir() 打开的目录句柄资源。如果该参数未指定，则使用最后一个由 opendir() 打开的链接。 |
technical details
| return value: | - |
|---|---|
| PHP version: | 4.0+ |
PHP Directory Reference