PHP - Manual: FE_FETCH
2024-12-27
<?php
/*
* Fetch an element from iterator. If no element is available, jump to address. Followed by OP_DATA?
* opcode number: 78
*/
$a = array(1,2,3);
foreach($a as $num){
print $num;
}
?>
Function name: (null)
Compiled variables: !0=$a, !1=$num
line | # | op | fetch | ext | return | operands |
---|---|---|---|---|---|---|
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 |
官方地址:https://www.php.net/manual/en/internals2.opcodes.fe-fetch.php