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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);
Output for 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: preg_match(): Unknown modifier '(' in /in/BD9D3 on line 5 NULL
Output for 7.0.19 - 7.0.33, 7.1.5 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27
Warning: preg_match(): Unknown modifier '(' in /in/BD9D3 on line 8 NULL
Output for 7.0.0 - 7.0.18, 7.1.0 - 7.1.4
Warning: preg_match(): Unknown modifier '(' in /in/BD9D3 on line 7 NULL
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Warning: preg_match(): Unknown modifier '(' in /in/BD9D3 on line 9 NULL
Output for 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Warning: preg_match(): Unknown modifier '(' in /in/BD9D3 on line 9 array(0) { }
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier '(' in /in/BD9D3 on line 9 array(0) { }

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