PHP Unconference Europe 2015

RECV

PHP code

<?php
/*
 * Receive a functoin argument of "argument-number" and store the argument value into a variable of "argument-number".  (e.g. $1 for 1)
 * opcode number: 63
 */
function hello($a){}
?>

PHP opcodes

Function name: (null)

Compiled variables: none

line#op fetchextreturn operands
60 NOP      
71 RETURN     1

Function name: hello

Compiled variables: !0=$a

line#op fetchextreturn operands
60 RECV     1
 1 RETURN     null
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