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<?php $letter = 's'; if (preg_match('/^[a-zA-Z]$/', $letter) !== 1) { throw new \InvalidArgumentException(); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 10
Branch analysis from position: 7
1 jumps found. (Code = 108) Position 1 = -2
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Hij0E
function name:  (null)
number of ops:  11
compiled vars:  !0 = $letter
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 's'
    3     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%5E%5Ba-zA-Z%5D%24%2F'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $2      
          5        IS_NOT_IDENTICAL                                         $2, 1
          6      > JMPZ                                                     ~3, ->10
    4     7    >   NEW                                              $4      'InvalidArgumentException'
          8        DO_FCALL                                      0          
          9      > THROW                                         0          $4
    5    10    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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