Internals2/opcodes/bool-not-Phpdoc专题
BOOL_NOT
PHP code
<?php
/*
* Boolean (logical) not of "value"
* opcode number: 13
*/
echo !1;
?>PHP opcodes
Function name: (null)
Compiled variables: none
| line | # | op | fetch | ext | return | operands |
|---|---|---|---|---|---|---|
| 6 | 0 | BOOL_NOT | ~0 | 1 | ||
| 1 | ECHO | ~0 | ||||
| 7 | 2 | RETURN | 1 |