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Bugs & Features
<?php $my = htmlspecialchars("i/7YHXEk1J8JidEsLuPzCsWWFW0=", ENT_QUOTES); $received = "i\\/7YHXEk1J8JidEsLuPzCsWWFW0="; var_dump(htmlspecialchars_decode(urldecode($received)), ENT_QUOTES);
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = -2
filename:       /in/Dle8I
function name:  (null)
number of ops:  17
compiled vars:  !0 = $my, !1 = $received
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   2     0  E >   INIT_FCALL                                               'htmlspecialchars'
         1        SEND_VAL                                                 'i%2F7YHXEk1J8JidEsLuPzCsWWFW0%3D'
         2        SEND_VAL                                                 3
         3        DO_ICALL                                         $2      
         4        ASSIGN                                                   !0, $2
   3     5        ASSIGN                                                   !1, 'i%5C%2F7YHXEk1J8JidEsLuPzCsWWFW0%3D'
   4     6        INIT_FCALL                                               'var_dump'
         7        INIT_FCALL                                               'htmlspecialchars_decode'
         8        INIT_FCALL                                               'urldecode'
         9        SEND_VAR                                                 !1
        10        DO_ICALL                                         $5      
        11        SEND_VAR                                                 $5
        12        DO_ICALL                                         $6      
        13        SEND_VAR                                                 $6
        14        SEND_VAL                                                 3
        15        DO_ICALL                                                 
        16      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.2.0