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<?php $var = "application/json;version=1"; $pos = substr($var, -2); echo $pos;
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = -2
filename:       /in/ZTCRA
function name:  (null)
number of ops:  8
compiled vars:  !0 = $var, !1 = $pos
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   2     0  E >   ASSIGN                                                   !0, 'application%2Fjson%3Bversion%3D1'
   3     1        INIT_FCALL                                               'substr'
         2        SEND_VAR                                                 !0
         3        SEND_VAL                                                 -2
         4        DO_ICALL                                         $3      
         5        ASSIGN                                                   !1, $3
   4     6        ECHO                                                     !1
         7      > RETURN                                                   1

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