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<?php function timeZoneToOffset(string $timeZone): \DateTimeImmutable { return new DateTimeImmutable( '2020-01-01 15:00' . (new \DateTime('now', new DateTimeZone($timeZone)))->format('P') ); } var_dump(timeZoneToOffset('Europe/Paris')->getTimestamp() === timeZoneToOffset('Africa/Cairo')->getTimestamp());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Ta4a8
function name:  (null)
number of ops:  15
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    9     0  E >   INIT_FCALL                                                   'var_dump'
          1        INIT_FCALL                                                   'timezonetooffset'
          2        SEND_VAL                                                     'Europe%2FParis'
          3        DO_FCALL                                          0  $0      
          4        INIT_METHOD_CALL                                             $0, 'getTimestamp'
          5        DO_FCALL                                          0  $1      
          6        INIT_FCALL                                                   'timezonetooffset'
          7        SEND_VAL                                                     'Africa%2FCairo'
          8        DO_FCALL                                          0  $2      
          9        INIT_METHOD_CALL                                             $2, 'getTimestamp'
         10        DO_FCALL                                          0  $3      
         11        IS_IDENTICAL                                         ~4      $1, $3
         12        SEND_VAL                                                     ~4
         13        DO_ICALL                                                     
         14      > RETURN                                                       1

Function timezonetooffset:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Ta4a8
function name:  timeZoneToOffset
number of ops:  19
compiled vars:  !0 = $timeZone
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   RECV                                                 !0      
    4     1        NEW                                                  $1      'DateTimeImmutable'
    5     2        NEW                                                  $2      'DateTime'
          3        SEND_VAL_EX                                                  'now'
          4        NEW                                                  $3      'DateTimeZone'
          5        SEND_VAR_EX                                                  !0
          6        DO_FCALL                                          0          
          7        SEND_VAR_NO_REF_EX                                           $3
          8        DO_FCALL                                          0          
          9        INIT_METHOD_CALL                                             $2, 'format'
         10        SEND_VAL_EX                                                  'P'
         11        DO_FCALL                                          0  $6      
         12        CONCAT                                               ~7      '2020-01-01+15%3A00', $6
         13        SEND_VAL_EX                                                  ~7
    4    14        DO_FCALL                                          0          
    5    15        VERIFY_RETURN_TYPE                                           $1
         16      > RETURN                                                       $1
    7    17*       VERIFY_RETURN_TYPE                                           
         18*     > RETURN                                                       null

End of function timezonetooffset

Generated using Vulcan Logic Dumper, using php 8.5.0


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164.1 ms | 1853 KiB | 16 Q