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<?php function isPerfect($n) { return count($n)==4&$n[0]*$n[1]*$n[2]*$n[3]+1==pow(pow($n[0],2)+3*$n[0]+1,2); } var_dump(isPerfect([1,2,3,4])); var_dump(isPerfect(['1','2','3','4'])); var_dump(isPerfect([3,9,5,6])); var_dump(isPerfect([1,2,3,4,5])); var_dump(isPerfect(['a','b','c','d'])); var_dump(isPerfect([1,'b',3,4])); var_dump(isPerfect([1001,1002,1003,1004]));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/3DBSt
function name:  (null)
number of ops:  43
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'isperfect'
          2        SEND_VAL                                                 <array>
          3        DO_FCALL                                      0  $0      
          4        SEND_VAR                                                 $0
          5        DO_ICALL                                                 
    8     6        INIT_FCALL                                               'var_dump'
          7        INIT_FCALL                                               'isperfect'
          8        SEND_VAL                                                 <array>
          9        DO_FCALL                                      0  $2      
         10        SEND_VAR                                                 $2
         11        DO_ICALL                                                 
    9    12        INIT_FCALL                                               'var_dump'
         13        INIT_FCALL                                               'isperfect'
         14        SEND_VAL                                                 <array>
         15        DO_FCALL                                      0  $4      
         16        SEND_VAR                                                 $4
         17        DO_ICALL                                                 
   10    18        INIT_FCALL                                               'var_dump'
         19        INIT_FCALL                                               'isperfect'
         20        SEND_VAL                                                 <array>
         21        DO_FCALL                                      0  $6      
         22        SEND_VAR                                                 $6
         23        DO_ICALL                                                 
   11    24        INIT_FCALL                                               'var_dump'
         25        INIT_FCALL                                               'isperfect'
         26        SEND_VAL                                                 <array>
         27        DO_FCALL                                      0  $8      
         28        SEND_VAR                                                 $8
         29        DO_ICALL                                                 
   12    30        INIT_FCALL                                               'var_dump'
         31        INIT_FCALL                                               'isperfect'
         32        SEND_VAL                                                 <array>
         33        DO_FCALL                                      0  $10     
         34        SEND_VAR                                                 $10
         35        DO_ICALL                                                 
   13    36        INIT_FCALL                                               'var_dump'
         37        INIT_FCALL                                               'isperfect'
         38        SEND_VAL                                                 <array>
         39        DO_FCALL                                      0  $12     
         40        SEND_VAR                                                 $12
         41        DO_ICALL                                                 
         42      > RETURN                                                   1

Function isperfect:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/3DBSt
function name:  isPerfect
number of ops:  28
compiled vars:  !0 = $n
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        COUNT                                            ~1      !0
          2        IS_EQUAL                                         ~2      ~1, 4
          3        FETCH_DIM_R                                      ~3      !0, 0
          4        FETCH_DIM_R                                      ~4      !0, 1
          5        MUL                                              ~5      ~3, ~4
          6        FETCH_DIM_R                                      ~6      !0, 2
          7        MUL                                              ~7      ~5, ~6
          8        FETCH_DIM_R                                      ~8      !0, 3
          9        MUL                                              ~9      ~7, ~8
         10        ADD                                              ~10     ~9, 1
         11        INIT_FCALL                                               'pow'
         12        INIT_FCALL                                               'pow'
         13        FETCH_DIM_R                                      ~11     !0, 0
         14        SEND_VAL                                                 ~11
         15        SEND_VAL                                                 2
         16        DO_ICALL                                         $12     
         17        FETCH_DIM_R                                      ~13     !0, 0
         18        MUL                                              ~14     ~13, 3
         19        ADD                                              ~15     $12, ~14
         20        ADD                                              ~16     ~15, 1
         21        SEND_VAL                                                 ~16
         22        SEND_VAL                                                 2
         23        DO_ICALL                                         $17     
         24        IS_EQUAL                                         ~18     $17, ~10
         25        BW_AND                                           ~19     ~2, ~18
         26      > RETURN                                                   ~19
    5    27*     > RETURN                                                   null

End of function isperfect

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
152.27 ms | 1403 KiB | 24 Q