INSTANCEOF
ISSET_ISEMPTY_PROP_OBJ
Opcodes
PHP Manual

## ISSET_ISEMPTY_DIM_OBJ

## PHP code

`<?php
/*
* Tests if the entry of an array is set or not.
* opcode number: 115
*/
if(isset($a[0])) return 0;
?>`

## PHP opcodes

Function name: (null)

Compiled variables: !0=$a

line | # | op | fetch | ext | return | operands
--- | --- | --- | --- | --- | --- | ---
6 | 0 | ZEND_ISSET_ISEMPTY_DIM_OBJ |  | 1 | ~0 | !0,0
| 1 | JMPZ |  |  |  | ~0,->4
| 2 | RETURN |  |  |  | 0
| 3 | JMP |  |  |  | ->4
7 | 4 | RETURN |  |  |  | 1

INSTANCEOF
ISSET_ISEMPTY_PROP_OBJ
Opcodes
PHP Manual