PHP readdir () 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
readdir () function returns the directory under a file name.
grammar
readdir( 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: | Returns the filename on success, on failure returns FALSE. |
---|---|
PHP version: | 4.0+ |
PHP Directory Reference