chroot

(PHP 4 >= 4.0.5, PHP 5)

chroot — Change the root directory

Description

bool chroot ( string $directory )

Changes the root directory of the current process to directory, and changes the current working directory to "/".

This function is only available to GNU and BSD systems, and only when using the CLI, CGI or Embed SAPI. Also, this function requires root privileges.

Parameters

directory: The path to change the root directory to.

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example #1 chroot() example


<?php
chroot("/path/to/your/chroot/");
echo getcwd();
?>

The above example will output:

Notes

Note: This function is not implemented on Windows platforms.

add a note User Contributed Notes chroot

nmmm at nmmm dot nu 20-Nov-2011 10:05


on my system this function is missing (Linux, php-cli), so I did:



if ( function_exists("chroot") ){

       chroot($chroot);

       server_log("chroot() to $chroot", 1);

}else{

       server_log("Can not chroot(). Will try live without it.");

}

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