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<?php function validateDate($date, $format = 'Y-m-d H:i:s') { $d = DateTime::createFromFormat($format, $date); var_dump($d); echo "----------------------------------\n"; echo $d->format($format); echo "----------------------------------\n"; echo $date; echo "----------------------------------\n"; echo $d && $d->format($format) == $date; return; } validateDate('2012-02-30 12:12:12'); validateDate('30/02/2012', 'd/m/Y'); validateDate('14:77', 'H:i'); validateDate('2012-02-28 12:12:12');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jhVus
function name:  (null)
number of ops:  15
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   17     0  E >   INIT_FCALL                                               'validatedate'
          1        SEND_VAL                                                 '2012-02-30+12%3A12%3A12'
          2        DO_FCALL                                      0          
   18     3        INIT_FCALL                                               'validatedate'
          4        SEND_VAL                                                 '30%2F02%2F2012'
          5        SEND_VAL                                                 'd%2Fm%2FY'
          6        DO_FCALL                                      0          
   19     7        INIT_FCALL                                               'validatedate'
          8        SEND_VAL                                                 '14%3A77'
          9        SEND_VAL                                                 'H%3Ai'
         10        DO_FCALL                                      0          
   20    11        INIT_FCALL                                               'validatedate'
         12        SEND_VAL                                                 '2012-02-28+12%3A12%3A12'
         13        DO_FCALL                                      0          
         14      > RETURN                                                   1

Function validatedate:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 46) Position 1 = 19, Position 2 = 24
Branch analysis from position: 19
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 24
filename:       /in/jhVus
function name:  validateDate
number of ops:  27
compiled vars:  !0 = $date, !1 = $format, !2 = $d
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
          1        RECV_INIT                                        !1      'Y-m-d+H%3Ai%3As'
    5     2        INIT_STATIC_METHOD_CALL                                  'DateTime', 'createFromFormat'
          3        SEND_VAR                                                 !1
          4        SEND_VAR                                                 !0
          5        DO_FCALL                                      0  $3      
          6        ASSIGN                                                   !2, $3
    6     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !2
          9        DO_ICALL                                                 
    7    10        ECHO                                                     '----------------------------------%0A'
    8    11        INIT_METHOD_CALL                                         !2, 'format'
         12        SEND_VAR_EX                                              !1
         13        DO_FCALL                                      0  $6      
         14        ECHO                                                     $6
    9    15        ECHO                                                     '----------------------------------%0A'
   10    16        ECHO                                                     !0
   11    17        ECHO                                                     '----------------------------------%0A'
   12    18      > JMPZ_EX                                          ~7      !2, ->24
         19    >   INIT_METHOD_CALL                                         !2, 'format'
         20        SEND_VAR_EX                                              !1
         21        DO_FCALL                                      0  $8      
         22        IS_EQUAL                                         ~9      !0, $8
         23        BOOL                                             ~7      ~9
         24    >   ECHO                                                     ~7
   13    25      > RETURN                                                   null
   14    26*     > RETURN                                                   null

End of function validatedate

Generated using Vulcan Logic Dumper, using php 8.0.0


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