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<?php $date = new DateTime('2017-06-28'); var_dump($date->format('Y-m-d')); $test = floor(1 / 3); var_dump($test); $date->setDate($date->format('Y'), floor(($date->format('m')-1) / 3) * 3 + 1, 1); var_dump($date->format('Y-m-d')); $date = clone($date); $date->modify('+3 month -1 day'); var_dump($date->format('Y-m-d')); $date->setDate($date->format('Y'), 1, 1); var_dump($date->format('Y-m-d')); $date->setDate($date->format('Y'), 12, 31); var_dump($date->format('Y-m-d'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/BCerQ
function name:  (null)
number of ops:  81
compiled vars:  !0 = $date, !1 = $test
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $2      'DateTime'
          1        SEND_VAL_EX                                              '2017-06-28'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $2
    4     4        INIT_FCALL                                               'var_dump'
          5        INIT_METHOD_CALL                                         !0, 'format'
          6        SEND_VAL_EX                                              'Y-m-d'
          7        DO_FCALL                                      0  $5      
          8        SEND_VAR                                                 $5
          9        DO_ICALL                                                 
    6    10        INIT_FCALL                                               'floor'
         11        SEND_VAL                                                 0.333333
         12        DO_ICALL                                         $7      
         13        ASSIGN                                                   !1, $7
    7    14        INIT_FCALL                                               'var_dump'
         15        SEND_VAR                                                 !1
         16        DO_ICALL                                                 
    8    17        INIT_METHOD_CALL                                         !0, 'setDate'
         18        INIT_METHOD_CALL                                         !0, 'format'
         19        SEND_VAL_EX                                              'Y'
         20        DO_FCALL                                      0  $10     
         21        SEND_VAR_NO_REF_EX                                       $10
         22        INIT_FCALL                                               'floor'
         23        INIT_METHOD_CALL                                         !0, 'format'
         24        SEND_VAL_EX                                              'm'
         25        DO_FCALL                                      0  $11     
         26        SUB                                              ~12     $11, 1
         27        DIV                                              ~13     ~12, 3
         28        SEND_VAL                                                 ~13
         29        DO_ICALL                                         $14     
         30        MUL                                              ~15     $14, 3
         31        ADD                                              ~16     ~15, 1
         32        SEND_VAL_EX                                              ~16
         33        SEND_VAL_EX                                              1
         34        DO_FCALL                                      0          
    9    35        INIT_FCALL                                               'var_dump'
         36        INIT_METHOD_CALL                                         !0, 'format'
         37        SEND_VAL_EX                                              'Y-m-d'
         38        DO_FCALL                                      0  $18     
         39        SEND_VAR                                                 $18
         40        DO_ICALL                                                 
   12    41        CLONE                                            ~20     !0
         42        ASSIGN                                                   !0, ~20
   13    43        INIT_METHOD_CALL                                         !0, 'modify'
         44        SEND_VAL_EX                                              '%2B3+month+-1+day'
         45        DO_FCALL                                      0          
   14    46        INIT_FCALL                                               'var_dump'
         47        INIT_METHOD_CALL                                         !0, 'format'
         48        SEND_VAL_EX                                              'Y-m-d'
         49        DO_FCALL                                      0  $23     
         50        SEND_VAR                                                 $23
         51        DO_ICALL                                                 
   17    52        INIT_METHOD_CALL                                         !0, 'setDate'
         53        INIT_METHOD_CALL                                         !0, 'format'
         54        SEND_VAL_EX                                              'Y'
         55        DO_FCALL                                      0  $25     
         56        SEND_VAR_NO_REF_EX                                       $25
         57        SEND_VAL_EX                                              1
         58        SEND_VAL_EX                                              1
         59        DO_FCALL                                      0          
   18    60        INIT_FCALL                                               'var_dump'
         61        INIT_METHOD_CALL                                         !0, 'format'
         62        SEND_VAL_EX                                              'Y-m-d'
         63        DO_FCALL                                      0  $27     
         64        SEND_VAR                                                 $27
         65        DO_ICALL                                                 
   19    66        INIT_METHOD_CALL                                         !0, 'setDate'
         67        INIT_METHOD_CALL                                         !0, 'format'
         68        SEND_VAL_EX                                              'Y'
         69        DO_FCALL                                      0  $29     
         70        SEND_VAR_NO_REF_EX                                       $29
         71        SEND_VAL_EX                                              12
         72        SEND_VAL_EX                                              31
         73        DO_FCALL                                      0          
   20    74        INIT_FCALL                                               'var_dump'
         75        INIT_METHOD_CALL                                         !0, 'format'
         76        SEND_VAL_EX                                              'Y-m-d'
         77        DO_FCALL                                      0  $31     
         78        SEND_VAR                                                 $31
         79        DO_ICALL                                                 
         80      > RETURN                                                   1

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