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<?php $x = '#'; var_dump(substr( $x, 1 )); $x = ''; var_dump(substr( $x, 1 ));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bmOXS
function name:  (null)
number of ops:  17
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%23'
    4     1        INIT_FCALL                                               'var_dump'
          2        INIT_FCALL                                               'substr'
          3        SEND_VAR                                                 !0
          4        SEND_VAL                                                 1
          5        DO_ICALL                                         $2      
          6        SEND_VAR                                                 $2
          7        DO_ICALL                                                 
    6     8        ASSIGN                                                   !0, ''
    7     9        INIT_FCALL                                               'var_dump'
         10        INIT_FCALL                                               'substr'
         11        SEND_VAR                                                 !0
         12        SEND_VAL                                                 1
         13        DO_ICALL                                         $5      
         14        SEND_VAR                                                 $5
         15        DO_ICALL                                                 
         16      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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