ISSET_ISEMPTY_PROP_OBJ

PHP code

<?php
/*
 * 
 * opcode number: 148
 */
$obj = new A();
if(empty($obj->num)) return 0;
?>

PHP opcodes

Function name: (null)

Compiled variables: !0=$obj

line	#	op	fetch	ext	return	operands
6	0	ZEND_FETCH_CLASS			:0	'A'
	1	NEW			$1	:0
	2	DO_FCALL_BY_NAME		0
	3	ASSIGN				!0,$1
7	4	ZEND_ISSET_ISEMPTY_PROP_OBJ			~4	!0,'num'
	5	JMPZ				~4,->8
	6	RETURN				0
	7	JMP				->8
8	8	RETURN				1