Internals2/opcodes/pre-dec-obj-Phpdoc专题
PRE_DEC_OBJ
PHP code
<?php
/*
*
* opcode number: 133
*/
$obj = new A();
--$obj->num;
?>PHP opcodes
Function name: (null)
Compiled variables: !0=$obj
| line | # | op | fetch | ext | return | operands |
|---|---|---|---|---|---|---|
| 6 | 0 | ZEND_FETCH_CLASS | :0 | 'A' | ||
| 1 | NEW | $1 | :0 | |||
| 2 | DO_FCALL_BY_NAME | 0 | ||||
| 3 | ASSIGN | !0,$1 | ||||
| 7 | 4 | ZEND_PRE_DEC_OBJ | !0,'num' | |||
| 8 | 5 | RETURN | 1 |