session_save_path

Function name: session_save_path()

Applicable version: PHP 4, PHP 5, PHP 7

Usage: The session_save_path() function is used to get or set the save path of the current session. The session saving path refers to the directory path that saves session data.

Syntax: string session_save_path ([ string $path ] )

parameter:

• $path (optional): The session save path to set. If this parameter is not provided, the function returns the current session save path.

Return value:

• When the $path parameter is provided, the function returns the previous session save path.
• When the $path parameter is not provided, the function returns the current session save path.

Example:

 // 获取当前会话的保存路径$savePath = session_save_path(); echo "当前会话保存路径：".$savePath; // 设置新的会话保存路径$newPath = '/path/to/save/session'; session_save_path($newPath); echo "新的会话保存路径已设置为：".$newPath;

Notes:

• The session save path must be a valid directory path and must have read and write permissions.
• If the provided session save path is invalid, the function returns an empty string.
• Setting the session save path before calling session_start() will take effect.
• If the session save path is not set, the default temporary directory is used as the save path.