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<?php print_r(explode('/', null));
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = -2
filename:       /in/nsi1W
function name:  (null)
number of ops:  8
compiled vars:  none
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   2     0  E >   INIT_FCALL                                               'print_r'
         1        INIT_FCALL                                               'explode'
         2        SEND_VAL                                                 '%2F'
         3        SEND_VAL                                                 null
         4        DO_ICALL                                         $0      
         5        SEND_VAR                                                 $0
         6        DO_ICALL                                                 
         7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.2.0