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<?php $d = new DateTime('2015-05-05'); echo 'Last day of the month of 2015-05-05 is '; echo $d->modify('last day of the month')->format('Y-m-d'), "\n"; $d = new DateTime('2015-05-05'); echo 'First day of the month of 2015-05-05 is '; echo $d->modify('first day of this month')->format('Y-m-d'), "\n"; $d = new DateTime('2015-05-05'); echo 'bla day of the month of 2015-05-05 is '; echo $d->modify('bla day of this month')->format('Y-m-d'), "\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/v6DLm
function name:  (null)
number of ops:  40
compiled vars:  !0 = $d
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $1      'DateTime'
          1        SEND_VAL_EX                                              '2015-05-05'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $1
    4     4        ECHO                                                     'Last+day+of+the+month+of+2015-05-05+is+'
    5     5        INIT_METHOD_CALL                                         !0, 'modify'
          6        SEND_VAL_EX                                              'last+day+of+the+month'
          7        DO_FCALL                                      0  $4      
          8        INIT_METHOD_CALL                                         $4, 'format'
          9        SEND_VAL_EX                                              'Y-m-d'
         10        DO_FCALL                                      0  $5      
         11        ECHO                                                     $5
         12        ECHO                                                     '%0A'
    7    13        NEW                                              $6      'DateTime'
         14        SEND_VAL_EX                                              '2015-05-05'
         15        DO_FCALL                                      0          
         16        ASSIGN                                                   !0, $6
    8    17        ECHO                                                     'First+day+of+the+month+of+2015-05-05+is+'
    9    18        INIT_METHOD_CALL                                         !0, 'modify'
         19        SEND_VAL_EX                                              'first+day+of+this+month'
         20        DO_FCALL                                      0  $9      
         21        INIT_METHOD_CALL                                         $9, 'format'
         22        SEND_VAL_EX                                              'Y-m-d'
         23        DO_FCALL                                      0  $10     
         24        ECHO                                                     $10
         25        ECHO                                                     '%0A'
   11    26        NEW                                              $11     'DateTime'
         27        SEND_VAL_EX                                              '2015-05-05'
         28        DO_FCALL                                      0          
         29        ASSIGN                                                   !0, $11
   12    30        ECHO                                                     'bla+day+of+the+month+of+2015-05-05+is+'
   13    31        INIT_METHOD_CALL                                         !0, 'modify'
         32        SEND_VAL_EX                                              'bla+day+of+this+month'
         33        DO_FCALL                                      0  $14     
         34        INIT_METHOD_CALL                                         $14, 'format'
         35        SEND_VAL_EX                                              'Y-m-d'
         36        DO_FCALL                                      0  $15     
         37        ECHO                                                     $15
         38        ECHO                                                     '%0A'
         39      > RETURN                                                   1

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