<?php

function random() {
	return base_convert(hash('sha256', uniqid()), 16, 36);
}

echo "Start Generating\n";
$keys = array();
$keys = array_pad($keys, 100000, '');
$len = count($keys);
for ($i = 0 ; $i < $len; $i++) {
	$keys[$i] = random();
	apcu_add($keys[$i], 'zoi');
}

echo "Start replacing\n";
for ($i = 0 ; true; $i++) {
	$idx = random_int (0, $len-1);
	apcu_delete($keys[$idx]);
	$keys[$idx] = random();
	apcu_add($keys[$idx], 'zoi');
	if($i % 100000000 == 0) {
		echo "Done: $i \n";
	}
}

?>