PHP chroot Function: Changing the Root Directory
The article explains PHP's chroot function, detailing its purpose of changing the process root directory, required environment and permissions, parameters, return values, and provides a practical code example demonstrating its usage.
The chroot function in PHP changes the root directory of the current process to the specified directory, effectively isolating the process’s filesystem view.
This function works only on systems that support it and when PHP runs in CLI, CGI, or embedded SAPI modes, and it requires root privileges.
Parameters
$directory – the new root directory path.
Return value
Returns TRUE on success, or FALSE on failure.
Example
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