PHP - Manual: FETCH_CONSTANT
2024-12-21
<?php
/*
* Fetch the constant value bound to the specified name (name) and stores it into a variable (result).
* opcode number: 99
*/
define("FOO", "something");
echo FOO;
?>
Function name: (null)
Compiled variables: none
line | # | op | fetch | ext | return | operands |
---|---|---|---|---|---|---|
6 | 0 | SEND_VAL | 'FOO' | |||
1 | SEND_VAL | 'something' | ||||
2 | DO_FCALL | 2 | 'define' | |||
7 | 3 | FETCH_CONSTANT | ~1 | 'FOO' | ||
4 | ECHO | ~1 | ||||
8 | 5 | RETURN | 1 |
官方地址:https://www.php.net/manual/en/internals2.opcodes.fetch-constant.php