PHP - Manual: FETCH_OBJ_RW
2024-12-22
<?php
/*
* Fetch the "prop-name" property value of this object.
* opcode number: 88
*/
$x = new A();
$a = 'x';
$$a->num++;
?>
Function name: (null)
Compiled variables: !0=$x, !1=$a
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 | ASSIGN | !1,'x' | |||
8 | 5 | FETCH_RW | local | $5 | !1 | |
6 | ZEND_POST_INC_OBJ | ~7 | $5,'num' | |||
7 | FREE | ~7 | ||||
9 | 8 | RETURN | 1 |
官方地址:https://www.php.net/manual/en/internals2.opcodes.fetch-obj-rw.php