recv-init-Phpdoc专题

RECV_INIT

PHP code

<?php
/*
 * Initialize a function argument with "value" if not received from caller.  Otherwise same as RECV.
 * opcode number: 64
 */
function hello($a=5){}
?>

PHP opcodes

Function name: (null)

Compiled variables: none

line	#	op	fetch	ext	return	operands
6	0	NOP
7	1	RETURN				1

Function name: hello

Compiled variables: !0=$a

line	#	op	fetch	ext	return	operands
6	0	RECV_INIT				1,5
	1	RETURN				null