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<?php $word = 'something'; echo substr($word, -1); // g? echo substr($word, 1, 1); // s?
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ZMv62
function name:  (null)
number of ops:  13
compiled vars:  !0 = $word
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'something'
    5     1        INIT_FCALL                                               'substr'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 -1
          4        DO_ICALL                                         $2      
          5        ECHO                                                     $2
    6     6        INIT_FCALL                                               'substr'
          7        SEND_VAR                                                 !0
          8        SEND_VAL                                                 1
          9        SEND_VAL                                                 1
         10        DO_ICALL                                         $3      
         11        ECHO                                                     $3
         12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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