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<?php $options = array(true, 'foo', 100, false); array_walk($options, function(&$val) { $val = (is_bool($val)) ? ( ($val) ? 'true' : 'false' ) : $val; }); var_dump($options);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/GuVN5
function name:  (null)
number of ops:  10
compiled vars:  !0 = $options
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1        INIT_FCALL                                               'array_walk'
          2        SEND_REF                                                 !0
          3        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FGuVN5%3A5%240'
    7     4        SEND_VAL                                                 ~2
          5        DO_ICALL                                                 
    9     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FGuVN5%3A5%240:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 9
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 6
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 7
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: 6
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/GuVN5
function name:  {closure}
number of ops:  12
compiled vars:  !0 = $val
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   RECV                                             !0      
    6     1        TYPE_CHECK                                   12          !0
          2      > JMPZ                                                     ~1, ->9
          3    > > JMPZ                                                     !0, ->6
          4    >   QM_ASSIGN                                        ~2      'true'
          5      > JMP                                                      ->7
          6    >   QM_ASSIGN                                        ~2      'false'
          7    >   QM_ASSIGN                                        ~3      ~2
          8      > JMP                                                      ->10
          9    >   QM_ASSIGN                                        ~3      !0
         10    >   ASSIGN                                                   !0, ~3
    7    11      > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FGuVN5%3A5%240

Generated using Vulcan Logic Dumper, using php 8.0.0


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