PHP Opcode Descriptions and Examples POST_INC_OBJ_编程学问网

POST_INC_OBJ

PHP code

 <?php
/*
 * Increment the property value specified by prop-name and store the original value into result.
 * opcode number: 134
 */
$obj = new A();
$obj->num++;
?>

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_POST_INC_OBJ			~5	!0,'num'
	5	FREE				~5
8	6	RETURN				1

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