Php/docs/internals2.opcodes.fetch-r
From Get docs
FETCH_R
PHP code
<?php/* * Fetch the value of the varible of "name" to assign it to a variable? Read-only? * opcode number: 80 */$x = 1;$a = 'x';echo $$a;?>
PHP opcodes
Function name: (null)
Compiled variables: !0=$x, !1=$a
| line | # | op | fetch | ext | return | operands |
|---|---|---|---|---|---|---|
| 6 | 0 | ASSIGN | !0,1 | |||
| 7 | 1 | ASSIGN | !1,'x' | |||
| 8 | 2 | FETCH_R | local | $2 | !1 | |
| 3 | ECHO | $2 | ||||
| 9 | 4 | RETURN | 1 |
