Is there no native "noop" callback function? It seems you have to define the noop function in this way each time you want to pass a noop callback.
NOP
PHP code
<?php
/*
* no operation
* opcode number: 0
*/
function A(){};
?>
PHP opcodes
Function name: (null)
Compiled variables: none
| line | # | op | fetch | ext | return | operands |
|---|---|---|---|---|---|---|
| 6 | 0 | NOP | ||||
| 7 | 1 | RETURN | 1 |
Function name: A
Compiled variables: none
| line | # | op | fetch | ext | return | operands |
|---|---|---|---|---|---|---|
| 6 | 0 | RETURN | null |
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