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<?php $date = new \DateTime('2370-01-31'); echo $date->sub(new \DateInterval('P1M'))->format('Y-m-d');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/LpEF6
function name:  (null)
number of ops:  15
compiled vars:  !0 = $date
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   NEW                                                  $1      'DateTime'
          1        SEND_VAL_EX                                                  '2370-01-31'
          2        DO_FCALL                                          0          
          3        ASSIGN                                                       !0, $1
    4     4        INIT_METHOD_CALL                                             !0, 'sub'
          5        NEW                                                  $4      'DateInterval'
          6        SEND_VAL_EX                                                  'P1M'
          7        DO_FCALL                                          0          
          8        SEND_VAR_NO_REF_EX                                           $4
          9        DO_FCALL                                          0  $6      
         10        INIT_METHOD_CALL                                             $6, 'format'
         11        SEND_VAL_EX                                                  'Y-m-d'
         12        DO_FCALL                                          0  $7      
         13        ECHO                                                         $7
         14      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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