- var_dump: documentation ( source)
- ini_set: documentation ( source)
- file_put_contents: documentation ( source)
<?php
ini_set('opcache.enable', true);
$file = __DIR__.'/file.txt';
file_put_contents($file, '<?php return 1;');
$var = include $file;
file_put_contents($file, '<?php return 2;');
$var = include $file;
var_dump($var);