declare-inherited-class-Phpdoc专题

DECLARE_INHERITED_CLASS

PHP code

<?php
/*
 * 
 * opcode number: 140
 */
 if($b){
 class Foo {
  public static $my_static = 'foo';
  public function staticValue() {
    return self::$my_static;
  }
 }

 class Bar extends Foo {
  public function fooStatic() {
     echo parent::$my_static;
  }
 }
}
?>

PHP opcodes

Function name: (null)

Compiled variables: !0=$b

line	#	op	return	operands
6	0	JMPZ		!0,->5
7	1	ZEND_DECLARE_CLASS	$0	'%00foo%2Fmnt%2Fworkspace%2Fws_phpscripts%2FPHPopcodes%2Fphpsamples%2FDECLARE_INHERITED_CLASS.php0xb7be503b','foo'
14	2	ZEND_FETCH_CLASS	:1	'Foo'
	3	ZEND_DECLARE_INHERITED_CLASS	$2	'%00bar%2Fmnt%2Fworkspace%2Fws_phpscripts%2FPHPopcodes%2Fphpsamples%2FDECLARE_INHERITED_CLASS.php0xb7be50bc','bar'
19	4	JMP		->5
20	5	RETURN		1

Function name: staticValue

Compiled variables: !0=$my_static

line	#	op	fetch	return	operands
10	0	ZEND_FETCH_CLASS
	1	FETCH_R	staticmember	$1	'my_static'
	2	RETURN			$1
11	3	RETURN			null

Function name: fooStatic

Compiled variables: !0=$my_static

line	#	op	fetch	return	operands
16	0	ZEND_FETCH_CLASS		:0
	1	FETCH_R	staticmember	$1	'my_static'
	2	ECHO			$1
17	3	RETURN			null