- PHP 手册
- PHP 核心：骇客指南
- Zend Engine 2 操作码列表
- Opcode Descriptions and Examples
PRE_DEC
PHP code
<?php
/*
* decrements variable indicated by value1 by 1 (before performing other operations) and stores in results
* opcode number: 35
*/
--$a;
?>
PHP opcodes
Function name: (null)
Compiled variables: !0=$a
| line | # | op | fetch | ext | return | operands |
|---|---|---|---|---|---|---|
| 6 | 0 | PRE_DEC | !0 | |||
| 7 | 1 | RETURN | 1 |
User Contributed Notes
There are no user contributed notes for this page.官方地址：https://www.php.net/manual/en/internals2.opcodes.pre-dec.php
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