<?php
/*
* Fetch the "prop-name" property value of this object. Read-only?
* Opcode 编号: 82
*/
$x = new A();
$a = 'x';
echo $$a->num;
?>
函数名: (null)
编译后的变量: !0=$x, !1=$a
| 行号 | # | 操作 | 读取 | 扩展 | 返回 | 操作数 |
|---|---|---|---|---|---|---|
| 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_R | local | $5 | !1 | |
| 6 | FETCH_OBJ_R | $6 | $5,'num' | |||
| 7 | ECHO | $6 | ||||
| 9 | 8 | RETURN | 1 |