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<?php $input = null; $pattern = '/\w/'; $data = preg_match($pattern, $input, $r); var_dump($data);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/5fM2b
function name:  (null)
number of ops:  12
compiled vars:  !0 = $input, !1 = $pattern, !2 = $data, !3 = $r
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, null
    4     1        ASSIGN                                                   !1, '%2F%5Cw%2F'
    6     2        INIT_FCALL                                               'preg_match'
          3        SEND_VAR                                                 !1
          4        SEND_VAR                                                 !0
          5        SEND_REF                                                 !3
          6        DO_ICALL                                         $6      
          7        ASSIGN                                                   !2, $6
    8     8        INIT_FCALL                                               'var_dump'
          9        SEND_VAR                                                 !2
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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