3v4l.org

run code in 300+ PHP versions simultaneously
<?php $d = new DateTime('2011-01-15 00:00:00'); $d2 = $d->modify('first day of this month'); //echo Date('t', 2); //$d2 = $d2->modify('last day of this month'); //$d3 = $d2->modify('last day of previous month'); var_dump($d2);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/3l4fd
function name:  (null)
number of ops:  12
compiled vars:  !0 = $d, !1 = $d2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $2      'DateTime'
          1        SEND_VAL_EX                                              '2011-01-15+00%3A00%3A00'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $2
    5     4        INIT_METHOD_CALL                                         !0, 'modify'
          5        SEND_VAL_EX                                              'first+day+of+this+month'
          6        DO_FCALL                                      0  $5      
          7        ASSIGN                                                   !1, $5
   11     8        INIT_FCALL                                               'var_dump'
          9        SEND_VAR                                                 !1
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
167.18 ms | 1394 KiB | 15 Q