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<?php $d = new \DateTime('2013-07-31'); echo $d->format('Y-m-d H:i:s'), "\n"; $s = clone $d; $d->modify('first day of last month'); echo $d->format('Y-m-d H:i:s');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/mYnta
function name:  (null)
number of ops:  19
compiled vars:  !0 = $d, !1 = $s
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $2      'DateTime'
          1        SEND_VAL_EX                                              '2013-07-31'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $2
    4     4        INIT_METHOD_CALL                                         !0, 'format'
          5        SEND_VAL_EX                                              'Y-m-d+H%3Ai%3As'
          6        DO_FCALL                                      0  $5      
          7        ECHO                                                     $5
          8        ECHO                                                     '%0A'
    5     9        CLONE                                            ~6      !0
         10        ASSIGN                                                   !1, ~6
    6    11        INIT_METHOD_CALL                                         !0, 'modify'
         12        SEND_VAL_EX                                              'first+day+of+last+month'
         13        DO_FCALL                                      0          
    7    14        INIT_METHOD_CALL                                         !0, 'format'
         15        SEND_VAL_EX                                              'Y-m-d+H%3Ai%3As'
         16        DO_FCALL                                      0  $9      
         17        ECHO                                                     $9
         18      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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