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<?php $str = "good string ith 9"; if(preg_match("/^ [a-zA-Z0-9]+$/", $str) == 1) { echo "ok"; } else { echo "niet ok"; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 9
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/lqQZY
function name:  (null)
number of ops:  11
compiled vars:  !0 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'good+string+ith+9'
    4     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%5E+%5Ba-zA-Z0-9%5D%2B%24%2F'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $2      
          5        IS_EQUAL                                                 $2, 1
          6      > JMPZ                                                     ~3, ->9
    5     7    >   ECHO                                                     'ok'
          8      > JMP                                                      ->10
    7     9    >   ECHO                                                     'niet+ok'
    8    10    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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