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<?php $file_name="abc.txt"; $file_extension = end(explode('.', $file_name));
Finding entry points
Branch analysis from position: 0
Jump found. (Code = 62) Position 1 = -2
filename:       /in/Cv65t
function name:  (null)
number of ops:  10
compiled vars:  !0 = $file_name, !1 = $file_extension
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   2     0  E >   ASSIGN                                                   !0, 'abc.txt'
   3     1        INIT_FCALL                                               'end'
         2        INIT_FCALL                                               'explode'
         3        SEND_VAL                                                 '.'
         4        SEND_VAR                                                 !0
         5        DO_ICALL                                         $3      
         6        SEND_VAR_NO_REF                               0          $3
         7        DO_ICALL                                         $4      
         8        ASSIGN                                                   !1, $4
         9      > RETURN                                                   1

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