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<?php $postcodeData['Exchange']['Postcode'] = 'RG306BP'; preg_match( '^([g][i][r][0][a][a])$|^((([a-pr-uwyz]{1}([0]|[1-9]\d?))|([a-pr-uwyz]{1}[a-hk-y]{1}([0]|[1-9]\d?))|([a-pr-uwyz]{1}[1-9][a-hjkps-uw]{1})|([a-pr-uwyz]{1}[a-hk-y]{1}[1-9][a-z]{1}))(\d[abd-hjlnp-uw-z]{2})?)$', $postcodeData['Exchange']['Postcode'], $postcode ); var_dump($postcode);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/lMTPa
function name:  (null)
number of ops:  14
compiled vars:  !0 = $postcodeData, !1 = $postcode
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   FETCH_DIM_W                                      $2      !0, 'Exchange'
          1        ASSIGN_DIM                                               $2, 'Postcode'
          2        OP_DATA                                                  'RG306BP'
    4     3        INIT_FCALL                                               'preg_match'
    5     4        SEND_VAL                                                 '%5E%28%5Bg%5D%5Bi%5D%5Br%5D%5B0%5D%5Ba%5D%5Ba%5D%29%24%7C%5E%28%28%28%5Ba-pr-uwyz%5D%7B1%7D%28%5B0%5D%7C%5B1-9%5D%5Cd%3F%29%29%7C%28%5Ba-pr-uwyz%5D%7B1%7D%5Ba-hk-y%5D%7B1%7D%28%5B0%5D%7C%5B1-9%5D%5Cd%3F%29%29%7C%28%5Ba-pr-uwyz%5D%7B1%7D%5B1-9%5D%5Ba-hjkps-uw%5D%7B1%7D%29%7C%28%5Ba-pr-uwyz%5D%7B1%7D%5Ba-hk-y%5D%7B1%7D%5B1-9%5D%5Ba-z%5D%7B1%7D%29%29%28%5Cd%5Babd-hjlnp-uw-z%5D%7B2%7D%29%3F%29%24'
    6     5        FETCH_DIM_R                                      ~4      !0, 'Exchange'
          6        FETCH_DIM_R                                      ~5      ~4, 'Postcode'
          7        SEND_VAL                                                 ~5
    7     8        SEND_REF                                                 !1
          9        DO_ICALL                                                 
   10    10        INIT_FCALL                                               'var_dump'
         11        SEND_VAR                                                 !1
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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