- str_repeat: documentation ( source)
- memory_get_usage: documentation ( source)
<?php
$ddd = str_repeat('a', 1024 * 1024 * 2 - memory_get_usage());
echo memory_get_usage(), "\n";
$pass = str_repeat('a', 1024 * 1024 * 9 + 1024 * 1000);
$pass . $pass;
__halt_compiler();