<?php
/*
* 释放"value"申请的内存?(译者：对照Opcode名称及例子来看应该是“释放临时循环变量”)
* Opcode 编号: 49
*/
$a = array(1,2,3);
foreach($a as $num){
print $num;
}
?>
函数名: (null)
编译后的变量: !0=$a, !1=$num
| 行号 | # | 操作 | 读取 | 扩展 | 返回 | 操作数 |
|---|---|---|---|---|---|---|
| 6 | 0 | INIT_ARRAY | ~0 | 1 | ||
| 1 | ADD_ARRAY_ELEMENT | ~0 | 2 | |||
| 2 | ADD_ARRAY_ELEMENT | ~0 | 3 | |||
| 3 | ASSIGN | !0,~0 | ||||
| 7 | 4 | FE_RESET | $2 | !0,->11 | ||
| 5 | FE_FETCH | $3 | $2,->11 | |||
| 6 | ZEND_OP_DATA | |||||
| 7 | ASSIGN | !1,$3 | ||||
| 8 | 8 | ~5 | !1 | |||
| 9 | FREE | ~5 | ||||
| 9 | 10 | JMP | ->5 | |||
| 11 | SWITCH_FREE | $2 | ||||
| 10 | 12 | RETURN | 1 |