Testing has table collision keys

gistfile1.txt

<?php
# More info at http://lukasmartinelli.ch/web/2014/11/17/php-dos-attack-revisited.html

$file = 'https://github.com/lukasmartinelli/php-dos-attack/blob/master/collision_keys.txt';
$handle = fopen($file, 'r');
$a = [];
while (($buffer = fgets($handle)) !== false) {
    $a[$buffer] = $buffer;
}
fclose($handle);