- print_r: documentation ( source)
- sleep: documentation ( source)
<?php
apc_store("test_1", "lalelu?", 500);
apc_store("test_1", "lalelu2?", 500);
apc_store("test_2", "lalelu3?", 500);
apc_store("test_2", "lalelu4?", 500);
sleep(2);
print_r(apc_cache_info());