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<?php $a = new DateTime('2015-05-04 17:22'); var_dump((string) $a->format('Y-m-d H:i:s')); $a->modify('+1 day'); var_dump((string) $a->format('Y-m-d H:i:s')); $a->modify('+1 weekday'); var_dump((string) $a->format('Y-m-d H:i:s')); var_dump(date('Y-m-d H:i:s', strtotime('+1 weekday')));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/554H4
function name:  (null)
number of ops:  42
compiled vars:  !0 = $a
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   NEW                                                  $1      'DateTime'
          1        SEND_VAL_EX                                                  '2015-05-04+17%3A22'
          2        DO_FCALL                                          0          
          3        ASSIGN                                                       !0, $1
    4     4        INIT_FCALL                                                   'var_dump'
          5        INIT_METHOD_CALL                                             !0, 'format'
          6        SEND_VAL_EX                                                  'Y-m-d+H%3Ai%3As'
          7        DO_FCALL                                          0  $4      
          8        CAST                                              6  ~5      $4
          9        SEND_VAL                                                     ~5
         10        DO_ICALL                                                     
    5    11        INIT_METHOD_CALL                                             !0, 'modify'
         12        SEND_VAL_EX                                                  '%2B1+day'
         13        DO_FCALL                                          0          
    6    14        INIT_FCALL                                                   'var_dump'
         15        INIT_METHOD_CALL                                             !0, 'format'
         16        SEND_VAL_EX                                                  'Y-m-d+H%3Ai%3As'
         17        DO_FCALL                                          0  $8      
         18        CAST                                              6  ~9      $8
         19        SEND_VAL                                                     ~9
         20        DO_ICALL                                                     
    7    21        INIT_METHOD_CALL                                             !0, 'modify'
         22        SEND_VAL_EX                                                  '%2B1+weekday'
         23        DO_FCALL                                          0          
    8    24        INIT_FCALL                                                   'var_dump'
         25        INIT_METHOD_CALL                                             !0, 'format'
         26        SEND_VAL_EX                                                  'Y-m-d+H%3Ai%3As'
         27        DO_FCALL                                          0  $12     
         28        CAST                                              6  ~13     $12
         29        SEND_VAL                                                     ~13
         30        DO_ICALL                                                     
   10    31        INIT_FCALL                                                   'var_dump'
         32        INIT_FCALL                                                   'date'
         33        SEND_VAL                                                     'Y-m-d+H%3Ai%3As'
         34        INIT_FCALL                                                   'strtotime'
         35        SEND_VAL                                                     '%2B1+weekday'
         36        DO_ICALL                                             $15     
         37        SEND_VAR                                                     $15
         38        DO_ICALL                                             $16     
         39        SEND_VAR                                                     $16
         40        DO_ICALL                                                     
         41      > RETURN                                                       1

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