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<?php $string = '(Dec 27, 2013 05:26:29 PST)'; $tz = 'America/Los_Angeles'; preg_match('/^\((.*) PST\)$/', $string, $matches); $string = $matches[1]; $dt = new DateTime($string, new DateTimeZone($tz)); echo $dt->format('U');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/K0EdS
function name:  (null)
number of ops:  22
compiled vars:  !0 = $string, !1 = $tz, !2 = $matches, !3 = $dt
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%28Dec+27%2C+2013+05%3A26%3A29+PST%29'
    4     1        ASSIGN                                                   !1, 'America%2FLos_Angeles'
    6     2        INIT_FCALL                                               'preg_match'
          3        SEND_VAL                                                 '%2F%5E%5C%28%28.%2A%29+PST%5C%29%24%2F'
          4        SEND_VAR                                                 !0
          5        SEND_REF                                                 !2
          6        DO_ICALL                                                 
    7     7        FETCH_DIM_R                                      ~7      !2, 1
          8        ASSIGN                                                   !0, ~7
    9     9        NEW                                              $9      'DateTime'
         10        SEND_VAR_EX                                              !0
         11        NEW                                              $10     'DateTimeZone'
         12        SEND_VAR_EX                                              !1
         13        DO_FCALL                                      0          
         14        SEND_VAR_NO_REF_EX                                       $10
         15        DO_FCALL                                      0          
         16        ASSIGN                                                   !3, $9
   10    17        INIT_METHOD_CALL                                         !3, 'format'
         18        SEND_VAL_EX                                              'U'
         19        DO_FCALL                                      0  $14     
         20        ECHO                                                     $14
         21      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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