PHP Manual: ISSET_ISEMPTY_PROP

ISSET_ISEMPTY_PROP_OBJ


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

Function name: (null)

Compiled variables: !0=$obj

line	#	op	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