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<?php function check_date($a1,$a2,$a3,$a4) { global $error; try { $date = DateTime::createFromFormat('d/m/Y', $a1); if ($date === false || $date->format('d/m/Y') !== $a1) throw new Exception('Invalid date'); } catch (Throwable $e) { echo "ERROR - Row ($a2) - Column ($a4) - {$e->getMessage()} $a3: \"$a1\"</br>" . PHP_EOL; $error = 1 ; } } check_date("\0", 1, "ISSUE_DATE", 'Start date'); check_date('20/01/2023', 2, "ISSUE_DATE", 'Start date'); check_date('3/4/2023', 3, "ISSUE_DATE", 'Start date'); check_date('2023-01-20', 4, "ISSUE_DATE", 'Start date'); check_date('', 5, "ISSUE_DATE", 'Start date'); check_date('a', 6, "ISSUE_DATE", 'Start date');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ga9IR
function name:  (null)
number of ops:  37
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   16     0  E >   INIT_FCALL                                               'check_date'
          1        SEND_VAL                                                 '%00'
          2        SEND_VAL                                                 1
          3        SEND_VAL                                                 'ISSUE_DATE'
          4        SEND_VAL                                                 'Start+date'
          5        DO_FCALL                                      0          
   17     6        INIT_FCALL                                               'check_date'
          7        SEND_VAL                                                 '20%2F01%2F2023'
          8        SEND_VAL                                                 2
          9        SEND_VAL                                                 'ISSUE_DATE'
         10        SEND_VAL                                                 'Start+date'
         11        DO_FCALL                                      0          
   18    12        INIT_FCALL                                               'check_date'
         13        SEND_VAL                                                 '3%2F4%2F2023'
         14        SEND_VAL                                                 3
         15        SEND_VAL                                                 'ISSUE_DATE'
         16        SEND_VAL                                                 'Start+date'
         17        DO_FCALL                                      0          
   19    18        INIT_FCALL                                               'check_date'
         19        SEND_VAL                                                 '2023-01-20'
         20        SEND_VAL                                                 4
         21        SEND_VAL                                                 'ISSUE_DATE'
         22        SEND_VAL                                                 'Start+date'
         23        DO_FCALL                                      0          
   20    24        INIT_FCALL                                               'check_date'
         25        SEND_VAL                                                 ''
         26        SEND_VAL                                                 5
         27        SEND_VAL                                                 'ISSUE_DATE'
         28        SEND_VAL                                                 'Start+date'
         29        DO_FCALL                                      0          
   21    30        INIT_FCALL                                               'check_date'
         31        SEND_VAL                                                 'a'
         32        SEND_VAL                                                 6
         33        SEND_VAL                                                 'ISSUE_DATE'
         34        SEND_VAL                                                 'Start+date'
         35        DO_FCALL                                      0          
         36      > RETURN                                                   1

Function check_date:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 47) Position 1 = 12, Position 2 = 17
Branch analysis from position: 12
2 jumps found. (Code = 43) Position 1 = 18, Position 2 = 22
Branch analysis from position: 18
1 jumps found. (Code = 108) Position 1 = -2
Branch analysis from position: 22
1 jumps found. (Code = 42) Position 1 = 40
Branch analysis from position: 40
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
Found catch point at position: 23
Branch analysis from position: 23
2 jumps found. (Code = 107) Position 1 = 24, Position 2 = -2
Branch analysis from position: 24
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ga9IR
function name:  check_date
number of ops:  41
compiled vars:  !0 = $a1, !1 = $a2, !2 = $a3, !3 = $a4, !4 = $error, !5 = $date, !6 = $e
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        RECV                                             !2      
          3        RECV                                             !3      
    5     4        BIND_GLOBAL                                              !4, 'error'
    7     5        INIT_STATIC_METHOD_CALL                                  'DateTime', 'createFromFormat'
          6        SEND_VAL                                                 'd%2Fm%2FY'
          7        SEND_VAR                                                 !0
          8        DO_FCALL                                      0  $7      
          9        ASSIGN                                                   !5, $7
    8    10        TYPE_CHECK                                    4  ~9      !5
         11      > JMPNZ_EX                                         ~9      ~9, ->17
         12    >   INIT_METHOD_CALL                                         !5, 'format'
         13        SEND_VAL_EX                                              'd%2Fm%2FY'
         14        DO_FCALL                                      0  $10     
         15        IS_NOT_IDENTICAL                                 ~11     !0, $10
         16        BOOL                                             ~9      ~11
         17    > > JMPZ                                                     ~9, ->22
         18    >   NEW                                              $12     'Exception'
         19        SEND_VAL_EX                                              'Invalid+date'
         20        DO_FCALL                                      0          
         21      > THROW                                         0          $12
         22    > > JMP                                                      ->40
   10    23  E > > CATCH                                       last         'Throwable'
   11    24    >   ROPE_INIT                                    11  ~16     'ERROR+-+Row+%28'
         25        ROPE_ADD                                      1  ~16     ~16, !1
         26        ROPE_ADD                                      2  ~16     ~16, '%29+-+Column+%28'
         27        ROPE_ADD                                      3  ~16     ~16, !3
         28        ROPE_ADD                                      4  ~16     ~16, '%29+-+'
         29        INIT_METHOD_CALL                                         !6, 'getMessage'
         30        DO_FCALL                                      0  $14     
         31        ROPE_ADD                                      5  ~16     ~16, $14
         32        ROPE_ADD                                      6  ~16     ~16, '+'
         33        ROPE_ADD                                      7  ~16     ~16, !2
         34        ROPE_ADD                                      8  ~16     ~16, '%3A+%22'
         35        ROPE_ADD                                      9  ~16     ~16, !0
         36        ROPE_END                                     10  ~15     ~16, '%22%3C%2Fbr%3E'
         37        CONCAT                                           ~22     ~15, '%0A'
         38        ECHO                                                     ~22
   12    39        ASSIGN                                                   !4, 1
   14    40    > > RETURN                                                   null

End of function check_date

Generated using Vulcan Logic Dumper, using php 8.0.0


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