The mkdir() function in PHP is used to create directories

The mkdir() function in PHP is used to create a directory. A specific code example will be given below.

First of all, we need to understand the basic usage of the mkdir() function. The prototype of the mkdir() function is:

bool mkdir(string $directory, int $mode = 0777, bool $recursive = false, resource $context = null)

Parameter description:

• $directory: The directory path to be created, which can be an absolute path or a relative path.
• $mode: Permission to create a directory, the default is 0777, which is the highest permission.
• $recursive: If set to true, parent directories will be created recursively when creating a directory. Default is false.
• $context: Optional parameter, used to set the directory context.

The following is a specific code example:

// Create directory
$dir = "/path/to/directory"; / / Set the directory path to be created

if (!file_exists($dir)) { // Determine whether the directory already exists

if (mkdir($dir, 0777, true)) {  // 使用 mkdir() 函数创建目录
    echo "目录创建成功！";
} else {
    echo "目录创建失败！";
}

} else {

echo "目录已存在！";

}
?>

Note:

• Before using the mkdir() function to create a directory, make sure that the parent directory where the directory is located already exists.
• If the directory is created successfully, the function will return true; if the creation fails, the function will return false. You can determine whether the creation is successful by returning the value.

The above is a simple code example, you can modify and extend it according to your needs. Hope it helps you!

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