IS_NOT_IDENTICAL
IS_SMALLER_OR_EQUAL
Opcode Descriptions and Examples
PHP Manual

## IS_SMALLER

## PHP code

`<?php
/*
* compares if value1 is less than value2
* opcode number: 19
*/
echo (1 < 2);
?>`

## PHP opcodes

Function name: (null)

Compiled variables: none

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