PHP opendir () function
Examples
Open a directory, read its contents, and then close:
<?php
$dir = "/images/";
// Open a directory, and read its contents
if (is_dir($dir)){
if ($dh = opendir($dir)){
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)){
while (($file = readdir($dh)) !== false){
echo "filename:" . $file . "<br>";
}
closedir($dh);
}
}
?>
result:
filename: cat.gif
filename: dog.gif
filename: horse.gif
filename: dog.gif
filename: horse.gif
Definition and Usage
opendir () function to open a directory handle.
grammar
opendir( path,context );
| 参数 | 描述 |
|---|---|
| path | 必需。规定要打开的目录路径。 |
| context | 可选。规定目录句柄的环境。context 是可修改目录流的行为的一套选项。 |
technical details
| return value: | Returns a directory handle resource on success. It failed to return FALSE. If the path is not a valid directory, or due to licensing restrictions or filesystem errors directory can not be opened, then throws E_WARNING level error. You can add in front of the function name '@' to hide opendir () error output. |
|---|---|
| PHP version: | 4.0+ |
| PHP Update Log: | PHP 5.0: path parameter supports the ftp: // URL wrappers. |
PHP Directory Reference