PHP手册 - FETCH_OBJ_FUNC

FETCH_OBJ_FUNC_ARG

PHP code


<?php
/*
 * 
 * opcode number: 94
 */
include './classA.php';

function foo(&$x)
{
  print($x);
}

$z = "foo";

$obj = new A();
print $obj->num;
$z($obj->num);

?>

PHP opcodes

Function name: (null)

Compiled variables: !0=$z, !1=$obj

line	#	op	ext	return	operands
6	0	INCLUDE_OR_EVAL			'.%2FclassA.php',INCLUDE
8	1	NOP
13	2	ASSIGN			!0,'foo'
15	3	ZEND_FETCH_CLASS		:2	'A'
	4	NEW		$3	:2
	5	DO_FCALL_BY_NAME	0
	6	ASSIGN			!1,$3
16	7	FETCH_OBJ_R		$6	!1,'num'
	8	PRINT		~7	$6
	9	FREE			~7
17	10	INIT_FCALL_BY_NAME			!0
	11	FETCH_OBJ_FUNC_ARG		$8	!1,'num'
	12	SEND_VAR			$8
	13	DO_FCALL_BY_NAME	1
19	14	RETURN			1

Function name: foo

Compiled variables: !0=$x

line	#	op	return	operands
8	0	RECV		1
10	1	PRINT	~0	!0
	2	FREE		~0
11	3	RETURN		null

Function name: foo

Compiled variables: !0=$x

line	#	op	return	operands
8	0	RECV		1
10	1	PRINT	~0	!0
	2	FREE		~0
11	3	RETURN		null