Manuel PHP - FETCH_OBJ_R

FETCH_OBJ_R

<?php
/*
 * Fetch the "prop-name" property value of this object.  Read-only?
 * opcode number: 82
 */
$x = new A();
$a = 'x';
echo $$a->num;
?>

Function name: (null)

Compiled variables: !0=$x, !1=$a

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	ASSIGN				!1,'x'
8	5	FETCH_R	local		$5	!1
	6	FETCH_OBJ_R			$6	$5,'num'
	7	ECHO				$6
9	8	RETURN				1