ASSIGN_REF
ASSIGN_SR
Opcode Descriptions and Examples
PHP Manual

## ASSIGN_SL

## PHP code

`<?php
/*
* Shift result by value1 bits to left and store in variable indicated by result
* opcode number: 28
*/
$a <<= 3;
?>`

## PHP opcodes

Function name: (null)

Compiled variables: !0=$a

line | # | op | fetch | ext | return | operands
--- | --- | --- | --- | --- | --- | ---
6 | 0 | ASSIGN_SL |  |  |  | !0,3
7 | 1 | RETURN |  |  |  | 1