Internals2/opcodes/clone-Phpdoc专题
CLONE
PHP code
<?php
/*
*
* opcode number: 110
*/
$obj = new A();
$copy = clone $obj;
?>PHP opcodes
Function name: (null)
Compiled variables: !0=$obj, !1=$copy
| 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 | ZEND_CLONE | $4 | !0 | ||
| 5 | ASSIGN | !1,$4 | ||||
| 8 | 6 | RETURN | 1 |