<?php
/*
* Fetch the value of the varible of "name" to assign it to a variable? Read-only?
* Opcode 编号: 80
*/
$x = 1;
$a = 'x';
echo $$a;
?>
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 | ASSIGN | !0,1 | |||
| 7 | 1 | ASSIGN | !1,'x' | |||
| 8 | 2 | FETCH_R | local | $2 | !1 | |
| 3 | ECHO | $2 | ||||
| 9 | 4 | RETURN | 1 |