Question

So I have a file for constants. I want to let user define them and then edit my .php filr with that global constants (not xml – real PHP file )

With such code for example

<?php
// Database Constants
define("DB_SERVER", "localhost");
define("DB_USER", "root");
define("DB_PASS", "000000");
define("DB_NAME", "cms");
?>

How to edit this .php file from another PHP file? Is it possible?

Btw in future I want to implement not only constants redefining but some smart code that will be able to modify itself.

If someone can, please show me a function to change word “localhost” in my file…

Answer 1

FILE_TO_REPLACE_IN.php:

<?php
define("DB_SERVER", "{DB_SERVER}");
define("DB_USER", "{DB_USER}");
define("DB_PASS", "{DB_PASS}");
define("DB_NAME", "{DB_NAME}");

SCRIPT_TO_CHANGE_WITH.php:

<?php

$searchF  = array('{DB_SERVER}','{DB_USER}','{DB_PASS}','{DB_NAME}');
$replaceW = array('localhost',  'user',     'pass',     'db');

$fh = fopen("FILE_TO_REPLACE_IN.php", 'w');
$file = file_get_contents($fh);
$file = str_replace($searchF, $replaceW, $file);
fwrite($fh, $file);

… or something like that.