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<?php function test(array $array) { try { return isDictionary($array); } catch (Exception $e) { echo 'ss'; return 'error'; } } function isDictionary($array) { return !(bool)count(array_filter(array_keys($array), 'is_string')); } $arr = 0; var_dump(test($arr));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ia1SZ
function name:  (null)
number of ops:  8
compiled vars:  !0 = $arr
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   22     0  E >   ASSIGN                                                   !0, 0
   23     1        INIT_FCALL                                               'var_dump'
          2        INIT_FCALL                                               'test'
          3        SEND_VAR                                                 !0
          4        DO_FCALL                                      0  $2      
          5        SEND_VAR                                                 $2
          6        DO_ICALL                                                 
          7      > RETURN                                                   1

Function test:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
Found catch point at position: 6
Branch analysis from position: 6
2 jumps found. (Code = 107) Position 1 = 7, Position 2 = -2
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ia1SZ
function name:  test
number of ops:  10
compiled vars:  !0 = $array, !1 = $e
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    7     1        INIT_FCALL_BY_NAME                                       'isDictionary'
          2        SEND_VAR_EX                                              !0
          3        DO_FCALL                                      0  $2      
          4      > RETURN                                                   $2
          5*       JMP                                                      ->9
    9     6  E > > CATCH                                       last         'Exception'
   11     7    >   ECHO                                                     'ss'
   12     8      > RETURN                                                   'error'
   14     9*     > RETURN                                                   null

End of function test

Function isdictionary:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ia1SZ
function name:  isDictionary
number of ops:  13
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   16     0  E >   RECV                                             !0      
   17     1        INIT_FCALL                                               'array_filter'
          2        INIT_FCALL                                               'array_keys'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $1      
          5        SEND_VAR                                                 $1
          6        SEND_VAL                                                 'is_string'
          7        DO_ICALL                                         $2      
          8        COUNT                                            ~3      $2
          9        BOOL                                             ~4      ~3
         10        BOOL_NOT                                         ~5      ~4
         11      > RETURN                                                   ~5
   18    12*     > RETURN                                                   null

End of function isdictionary

Generated using Vulcan Logic Dumper, using php 8.0.0


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