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<?php $dt = '2011-12-17 09:30:56'; preg_match_all('/\d+/', $dt, $m); var_export( $m[0] );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/U2Tll
function name:  (null)
number of ops:  11
compiled vars:  !0 = $dt, !1 = $m
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '2011-12-17+09%3A30%3A56'
    5     1        INIT_FCALL                                               'preg_match_all'
          2        SEND_VAL                                                 '%2F%5Cd%2B%2F'
          3        SEND_VAR                                                 !0
          4        SEND_REF                                                 !1
          5        DO_ICALL                                                 
    6     6        INIT_FCALL                                               'var_export'
    7     7        FETCH_DIM_R                                      ~4      !1, 0
          8        SEND_VAL                                                 ~4
    6     9        DO_ICALL                                                 
    8    10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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