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<?php date_default_timezone_set('UTC'); //should be set in your script or in your php.ini $date = new DateTime('FIRST DAY OF PREVIOUS MONTH'); echo $date->format('Y-m-d'), PHP_EOL;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9rn4J
function name:  (null)
number of ops:  13
compiled vars:  !0 = $date
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'date_default_timezone_set'
          1        SEND_VAL                                                 'UTC'
          2        DO_ICALL                                                 
    3     3        NEW                                              $2      'DateTime'
          4        SEND_VAL_EX                                              'FIRST+DAY+OF+PREVIOUS+MONTH'
          5        DO_FCALL                                      0          
          6        ASSIGN                                                   !0, $2
    4     7        INIT_METHOD_CALL                                         !0, 'format'
          8        SEND_VAL_EX                                              'Y-m-d'
          9        DO_FCALL                                      0  $5      
         10        ECHO                                                     $5
         11        ECHO                                                     '%0A'
         12      > RETURN                                                   1

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