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<?php ob_start(function($str) { return "Modified: " . $str; }, 2); echo "Hello world";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Sj239
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'ob_start'
          1        DECLARE_LAMBDA_FUNCTION                          ~0      [0]
    5     2        SEND_VAL                                                 ~0
          3        SEND_VAL                                                 2
    3     4        DO_ICALL                                                 
    7     5        ECHO                                                     'Hello+world'
          6      > RETURN                                                   1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Sj239
function name:  {closure}
number of ops:  4
compiled vars:  !0 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        CONCAT                                           ~1      'Modified%3A+', !0
          2      > RETURN                                                   ~1
    5     3*     > RETURN                                                   null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.0.0


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