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Opcode Descriptions and Examples
PHP Manual

## SUB

## PHP code

`<?php
/*
* Subtracts "value2" from "value1" and stores the result into "result".
* opcode number: 2
*/
echo 1-2;
?>`

## PHP opcodes

Function name: (null)

Compiled variables: none

line | # | op | fetch | ext | return | operands
--- | --- | --- | --- | --- | --- | ---
6 | 0 | SUB |  |  | ~0 | 1,2
| 1 | ECHO |  |  |  | ~0
7 | 2 | RETURN |  |  |  | 1

SR
SWITCH_FREE
Opcode Descriptions and Examples
PHP Manual