PHP Australia Conference 2015

POST_DEC

PHP code

<?php
/*
 * decrements variable indicated by value1 by 1 (after performing other operations) and stores in result
 * opcode number: 37
 */
$a--;
?>

PHP opcodes

Function name: (null)

Compiled variables: !0=$a

line#op fetchextreturn operands
60 POST_DEC   ~0 !0
 1 FREE     ~0
72 RETURN     1
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