Internals2/opcodes/jmp-Phpdoc专题
JMP
PHP code
<?php
/*
* Unconditonally jump to the address
* opcode number: 42
*/
$foo = false;
while(!$foo) {
$foo = true;
}
?>PHP opcodes
Function name: (null)
compiled vars: !0 = $foo
| line | # | op | fetch | ext | return | operands |
|---|---|---|---|---|---|---|
| 6 | 0 | ASSIGN | !0, false | |||
| 7 | 1 | BOOL_NOT | ~1 | !0 | ||
| 2 | JMPZ | ~1, ->5 | ||||
| 8 | 3 | ASSIGN | !0, true | |||
| 9 | 4 | JMP | ->1 | |||
| 11 | 5 | RETURN | 1 |