How to use PHP scripts to perform directory operations in Linux

How to use PHP scripts to perform directory operations in Linux

Directory operations are one of the commonly used functions in web development. Directories can be easily added through PHP scripts. , delete, modify, check and other operations. This article will introduce how to use PHP scripts to perform directory operations in Linux and provide relevant code examples.

1. Create a directory

To create a directory, you can use the mkdir() function in PHP. This function accepts two parameters, the first parameter is the path of the directory to be created, and the second parameter is the permission settings.

The following is a sample code that demonstrates how to create a new directory named "test" in the specified directory of the Linux server:

<?php
$dir = '/path/to/directory';

if (!is_dir($dir)) { // 检查目录是否已存在
    mkdir($dir, 0777, true); // 创建目录
    echo "目录创建成功！";
} else {
    echo "目录已存在！";
}
?>

2. Delete the directory

To To delete a directory and its contents, you can use the rmdir() function in PHP. This function accepts one parameter, which is the path to the directory to be deleted. It should be noted that only empty directories can be deleted. If there are files or other subdirectories in the directory, all contents need to be deleted recursively.

The following is a sample code that demonstrates how to delete a directory named "test" and its contents:

<?php
$dir = '/path/to/directory';

if (is_dir($dir)) { // 检查目录是否存在
    $objects = scandir($dir); // 获取目录中的文件和子目录

    foreach ($objects as $object) {
        if ($object != "." && $object != "..") { // 排除当前目录和上级目录
            if (is_dir($dir . "/" . $object)) {
                rmdir_recursive($dir . "/" . $object); // 递归删除子目录
            } else {
                unlink($dir . "/" . $object); // 删除文件
            }
        }
    }

    rmdir($dir); // 删除目录
    echo "目录删除成功！";
} else {
    echo "目录不存在！";
}

function rmdir_recursive($dir) {
    $objects = scandir($dir);

    foreach ($objects as $object) {
        if ($object != "." && $object != "..") {
            if (is_dir($dir . "/" . $object)) {
                rmdir_recursive($dir . "/" . $object);
            } else {
                unlink($dir . "/" . $object);
            }
        }
    }

    rmdir($dir);
}
?>

3. Traverse the directory

To traverse the files in the directory and subdirectories, you can use the scandir() function in PHP. This function accepts one parameter, which is the path of the directory to be traversed, and returns an array containing the contents of the directory.

The following is a sample code that demonstrates how to traverse a directory named "test" and print the names of files and subdirectories in it:

<?php
$dir = '/path/to/directory';

if (is_dir($dir)) { // 检查目录是否存在
    $objects = scandir($dir); // 获取目录中的文件和子目录

    foreach ($objects as $object) {
        if ($object != "." && $object != "..") { // 排除当前目录和上级目录
            echo $object . "<br>";
        }
    }
} else {
    echo "目录不存在！";
}
?>

4. Modify directory permissions

To modify the permissions of the directory, you can use the chmod() function in PHP. This function accepts two parameters. The first parameter is the path to the directory where the permissions are to be modified, and the second parameter is the new permission settings.

The following is a sample code that demonstrates how to set the permissions of a directory named "test" to 0777:

<?php
$dir = '/path/to/directory';

if (is_dir($dir)) { // 检查目录是否存在
    chmod($dir, 0777); // 修改目录权限
    echo "目录权限修改成功！";
} else {
    echo "目录不存在！";
}
?>

With the above code sample, you can use a PHP script in Linux Directory operations, including creating directories, deleting directories, traversing directories, and modifying directory permissions. According to actual needs, these codes can be used flexibly to perform directory operations in web development.

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