PHP Opcode Descriptions and Examples SUB_编程学问网

SUB

PHP code

 <?php
/*
 * Subtracts "value2" from "value1" and stores the result into "result".
 * opcode number: 2
 */
echo 1-2;
?>

PHP opcodes

Function name: (null)

Compiled variables: none

line	#	op	fetch	ext	return	operands
6	0	SUB			~0	1,2
	1	ECHO				~0
7	2	RETURN				1

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