PHP Opcode Descriptions and Examples JMPZ_编程学问网

JMPZ

PHP code

 <?php
/*
 * Jump to the address if the value is zero
 * opcode number: 43
 */
if($a != 0) echo "foo";
?>

PHP opcodes

Function name: (null)

Compiled variables: !0=$a

line	#	op	fetch	ext	return	operands
6	0	IS_NOT_EQUAL			~0	!0,0
	1	JMPZ				~0,->4
	2	ECHO				'foo'
	3	JMP				->4
7	4	RETURN				1

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