apcu_inc Increase a stored number &reftitle.description; intapcu_inc stringkey intstep1 boolsuccess Increases a stored number. &reftitle.parameters; key The key of the value being increased. step The step, or value to increase. success Optionally pass the success or fail boolean value to this referenced variable. ttl TTL to use if the operation inserts a new value (rather than incrementing an existing one). &reftitle.returnvalues; Returns the current value of key's value on success, &return.falseforfailure; &reftitle.changelog; &Version; &Description; 5.1.12 The ttl parameter has been added. &reftitle.examples; <function>apcu_inc</function> example ]]> &example.outputs.similar; &reftitle.seealso; apcu_dec