Extend the TTL of a key in APC to now + a new ttl (or infinite)

function apc_extend_ttl(
  string $key,
  int $new_ttl,
): bool;

If the effective expiration of the key is longer than this, returns FALSE and does nothing.


  • string $key - The key to bump. If the key is not stored in APC, then FALSE is returned.
  • int $new_ttl - The new TTL for the key. 0 means infinite TTL.


  • bool - - TRUE if the TTL was actually extended, FALSE otherwise.