3v4l.org

run code in 300+ PHP versions simultaneously
<?php function isIndexNormalized($array){ $array[] = 'aux'; return (array_key_last($array) - array_key_first($array) + 1) === count($array); } // ------- $array = [0, 1, 2, 3]; unset($array[3]); var_dump(isIndexNormalized($array)); $array[] = "x"; var_dump([0, 1, 2, "x"] === $array, $array); echo "\n\n\n\n"; // ------- $array = [0, 1, 2]; var_dump(isIndexNormalized($array)); $array[] = "x"; var_dump([0, 1, 2, "x"] === $array, $array); echo "\n\n\n\n"; // ------- $array = [4 => 0, 5 => 1, 6 => 2]; var_dump(isIndexNormalized($array)); $array[] = "x"; var_dump([4 => 0, 5 => 1, 6 => 2, 7 => "x"] === $array, $array); echo "\n\n\n\n"; // ------- //This one fails though, but it will work on PHP8 :P $array = [-6 => 0, -5 => -2, -4 => 2]; var_dump(isIndexNormalized($array)); $array[] = "x"; var_dump([-6 => 0, -5 => 1, -4 => 2, -3 => "x"] === $array, $array);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/2IdLE
function name:  (null)
number of ops:  61
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   ASSIGN                                                   !0, <array>
   11     1        UNSET_DIM                                                !0, 3
   12     2        INIT_FCALL                                               'var_dump'
          3        INIT_FCALL                                               'isindexnormalized'
          4        SEND_VAR                                                 !0
          5        DO_FCALL                                      0  $2      
          6        SEND_VAR                                                 $2
          7        DO_ICALL                                                 
   13     8        ASSIGN_DIM                                               !0
          9        OP_DATA                                                  'x'
   14    10        INIT_FCALL                                               'var_dump'
         11        IS_IDENTICAL                                     ~5      !0, <array>
         12        SEND_VAL                                                 ~5
         13        SEND_VAR                                                 !0
         14        DO_ICALL                                                 
   16    15        ECHO                                                     '%0A%0A%0A%0A'
   18    16        ASSIGN                                                   !0, <array>
   19    17        INIT_FCALL                                               'var_dump'
         18        INIT_FCALL                                               'isindexnormalized'
         19        SEND_VAR                                                 !0
         20        DO_FCALL                                      0  $8      
         21        SEND_VAR                                                 $8
         22        DO_ICALL                                                 
   20    23        ASSIGN_DIM                                               !0
         24        OP_DATA                                                  'x'
   21    25        INIT_FCALL                                               'var_dump'
         26        IS_IDENTICAL                                     ~11     !0, <array>
         27        SEND_VAL                                                 ~11
         28        SEND_VAR                                                 !0
         29        DO_ICALL                                                 
   23    30        ECHO                                                     '%0A%0A%0A%0A'
   25    31        ASSIGN                                                   !0, <array>
   26    32        INIT_FCALL                                               'var_dump'
         33        INIT_FCALL                                               'isindexnormalized'
         34        SEND_VAR                                                 !0
         35        DO_FCALL                                      0  $14     
         36        SEND_VAR                                                 $14
         37        DO_ICALL                                                 
   27    38        ASSIGN_DIM                                               !0
         39        OP_DATA                                                  'x'
   28    40        INIT_FCALL                                               'var_dump'
         41        IS_IDENTICAL                                     ~17     !0, <array>
         42        SEND_VAL                                                 ~17
         43        SEND_VAR                                                 !0
         44        DO_ICALL                                                 
   30    45        ECHO                                                     '%0A%0A%0A%0A'
   32    46        ASSIGN                                                   !0, <array>
   33    47        INIT_FCALL                                               'var_dump'
         48        INIT_FCALL                                               'isindexnormalized'
         49        SEND_VAR                                                 !0
         50        DO_FCALL                                      0  $20     
         51        SEND_VAR                                                 $20
         52        DO_ICALL                                                 
   34    53        ASSIGN_DIM                                               !0
         54        OP_DATA                                                  'x'
   35    55        INIT_FCALL                                               'var_dump'
         56        IS_IDENTICAL                                     ~23     !0, <array>
         57        SEND_VAL                                                 ~23
         58        SEND_VAR                                                 !0
         59        DO_ICALL                                                 
         60      > RETURN                                                   1

Function isindexnormalized:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/2IdLE
function name:  isIndexNormalized
number of ops:  15
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        ASSIGN_DIM                                               !0
          2        OP_DATA                                                  'aux'
    5     3        INIT_FCALL                                               'array_key_last'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $2      
          6        INIT_FCALL                                               'array_key_first'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                         $3      
          9        SUB                                              ~4      $2, $3
         10        ADD                                              ~5      ~4, 1
         11        COUNT                                            ~6      !0
         12        IS_IDENTICAL                                     ~7      ~5, ~6
         13      > RETURN                                                   ~7
    6    14*     > RETURN                                                   null

End of function isindexnormalized

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
141.22 ms | 1009 KiB | 20 Q