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<?php /** * Check if a given date is the first Monday of the month * * @param \DateTime $date * @return bool */ function isFirstMondayayOfMonth(\DateTime $date) { return (int)$date->format('d') <= 7 && $date->format('l') === 'Monday'; } $day = new \DateTime('2013/9/2'); var_dump(isFirstMondayayOfMonth($day)); $day = new \DateTime('2013/10/2'); var_dump(isFirstMondayayOfMonth($day));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/PWFYY
function name:  (null)
number of ops:  21
compiled vars:  !0 = $day
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
  13     0  E >   NEW                                              $1      :37
         1        SEND_VAL_EX                                              '2013%2F9%2F2'
         2        DO_FCALL                                      0          
         3        QM_ASSIGN                                                !0
  14     4        INIT_FCALL                                               'var_dump'
         5        INIT_FCALL                                               'isfirstmondayayofmonth'
         6        SEND_VAR                                                 !0
         7        DO_FCALL                                      0  $4      
         8        SEND_VAR                                                 $4
         9        DO_ICALL                                                 
  16    10        NEW                                              $6      :22
        11        SEND_VAL_EX                                              '2013%2F10%2F2'
        12        DO_FCALL                                      0          
        13        QM_ASSIGN                                                !0
  17    14        INIT_FCALL                                               'var_dump'
        15        INIT_FCALL                                               'isfirstmondayayofmonth'
        16        SEND_VAR                                                 !0
        17        DO_FCALL                                      0  $9      
        18        SEND_VAR                                                 $9
        19        DO_ICALL                                                 
        20      > RETURN                                                   1

Function isfirstmondayayofmonth:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 46) Position 1 = 7, Position 2 = 12
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/PWFYY
function name:  isFirstMondayayOfMonth
number of ops:  14
compiled vars:  !0 = $date
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   8     0  E >   RECV                                             !0      
  10     1        INIT_METHOD_CALL                                         !0, 'format'
         2        SEND_VAL_EX                                              'd'
         3        DO_FCALL                                      0  $1      
         4        MAKE_REF                                         ~2      $1
         5        CAST                                          0  ~3      ~2, 7
         6      > JMPZ_EX                                          ~3      ~3, ->12
         7    >   INIT_METHOD_CALL                                         !0, 'format'
         8        SEND_VAL_EX                                              'l'
         9        DO_FCALL                                      0  $4      
        10        IS_NOT_IDENTICAL                                 ~5      $4, 'Monday'
        11        BOOL                                             ~3      ~5
        12    > > RETURN                                                   ~3
  11    13*     > RETURN                                                   null

End of function isfirstmondayayofmonth

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