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<?php $minutes = 5; $dt = new DateTime('2001-01-01 01:01:60'); echo (new DateTime('2001-01-01 01:' . (floor($dt->format('i')/$minutes) * $minutes) . ':60'))->format('Y-m-d H:i:s') . "\n"; echo (new DateTime('2001-01-01 01:' . (ceil($dt->format('i')/$minutes) * $minutes) . ':60'))->format('Y-m-d H:i:s') . "\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/mphig
function name:  (null)
number of ops:  42
compiled vars:  !0 = $minutes, !1 = $dt
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 5
    5     1        NEW                                              $3      'DateTime'
          2        SEND_VAL_EX                                              '2001-01-01+01%3A01%3A60'
          3        DO_FCALL                                      0          
          4        ASSIGN                                                   !1, $3
    7     5        NEW                                              $6      'DateTime'
          6        INIT_FCALL                                               'floor'
          7        INIT_METHOD_CALL                                         !1, 'format'
          8        SEND_VAL_EX                                              'i'
          9        DO_FCALL                                      0  $7      
         10        DIV                                              ~8      $7, !0
         11        SEND_VAL                                                 ~8
         12        DO_ICALL                                         $9      
         13        MUL                                              ~10     !0, $9
         14        CONCAT                                           ~11     '2001-01-01+01%3A', ~10
         15        CONCAT                                           ~12     ~11, '%3A60'
         16        SEND_VAL_EX                                              ~12
         17        DO_FCALL                                      0          
         18        INIT_METHOD_CALL                                         $6, 'format'
         19        SEND_VAL_EX                                              'Y-m-d+H%3Ai%3As'
         20        DO_FCALL                                      0  $14     
         21        CONCAT                                           ~15     $14, '%0A'
         22        ECHO                                                     ~15
    8    23        NEW                                              $16     'DateTime'
         24        INIT_FCALL                                               'ceil'
         25        INIT_METHOD_CALL                                         !1, 'format'
         26        SEND_VAL_EX                                              'i'
         27        DO_FCALL                                      0  $17     
         28        DIV                                              ~18     $17, !0
         29        SEND_VAL                                                 ~18
         30        DO_ICALL                                         $19     
         31        MUL                                              ~20     !0, $19
         32        CONCAT                                           ~21     '2001-01-01+01%3A', ~20
         33        CONCAT                                           ~22     ~21, '%3A60'
         34        SEND_VAL_EX                                              ~22
         35        DO_FCALL                                      0          
         36        INIT_METHOD_CALL                                         $16, 'format'
         37        SEND_VAL_EX                                              'Y-m-d+H%3Ai%3As'
         38        DO_FCALL                                      0  $24     
         39        CONCAT                                           ~25     $24, '%0A'
         40        ECHO                                                     ~25
         41      > RETURN                                                   1

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