PHP 5.6 и PHP 7 на русском: JMPNZ

JMPNZ_EX


<?php
/*
 * Jump to the address if the xor of value1 and value2 is zero .. ???
 * opcode number: 47
 */
if(1^2) return;
?>

Function name: (null)

Compiled variables: none

line	#	op	return	operands
6	0	BW_XOR	~0	1,2
	1	JMPZ		~0,->4
	2	RETURN		null
	3	JMP		->4
7	4	RETURN		1


This one is emitted inside a do .. while structure where booleans are compared with logical OR.

2015-03-16 03:04:55