<?php
/**
 * ini_get() and ini_set() usage
 * 
 * (php example)
 */
$varname = 'memory_limit';

$new = '42M';

$initial = ini_get($varname);

printf("initial value: \"%s\"\n", $initial);

printf("new value: \"%s\"\n", $new);

$old = ini_set($varname, $new);

if (false === $old) {
	printf("Error setting new value, exiting.");
	return;
}

printf("old value: \"%s\"\n", $old);

$current = ini_get($varname);

printf("current value: \"%s\"\n", $current);

ini_restore($varname);

$original = ini_get($varname);

printf("original value: \"%s\"\n", $original);