UNSET_VAR

PHP code

<?php
/*
 * Unset the variable and store the original value into "result".
 * opcode number: 74
 */
$x = 1;
$a='x';
unset($$a);
?>

PHP opcodes

Function name: (null)

Compiled variables: !0=$x, !1=$a

line#opfetchextreturnoperands
60ASSIGN   !0,1
71ASSIGN   !1,'x'
82UNSET_VAR  $2!1
93RETURN   1