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<?php $valid_rfc_emails = array( 'localpart.ending.with.dot.@example.com', '(comment)localpart@example.com', '"this is v@lid!"@example.com', '"much.more unusual"@example.com', 'postbox@com', 'admin@mailserver1', '"()<>[]:,;@\\"\\\\!#$%&\'*+-/=?^_`{}| ~.a"@example.org', '" "@example.org', ); $valid = array(); $invalid = array(); foreach ($valid_rfc_emails as $address) { if (filter_var($address, FILTER_VALIDATE_EMAIL)){ $valid[] = $address; }else{ $invalid[] = $address; echo 'rfc valid, filter_var invalid email: '.$address; } } echo 'valid: '; print_r($valid); echo 'invalid: '; print_r($invalid); ?>
Output for 5.2.14 - 5.2.17, 5.3.3 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
rfc valid, filter_var invalid email: localpart.ending.with.dot.@example.comrfc valid, filter_var invalid email: (comment)localpart@example.comrfc valid, filter_var invalid email: "this is v@lid!"@example.comrfc valid, filter_var invalid email: "much.more unusual"@example.comrfc valid, filter_var invalid email: postbox@comrfc valid, filter_var invalid email: admin@mailserver1rfc valid, filter_var invalid email: "()<>[]:,;@\"\\!#$%&'*+-/=?^_`{}| ~.a"@example.orgrfc valid, filter_var invalid email: " "@example.orgvalid: Array ( ) invalid: Array ( [0] => localpart.ending.with.dot.@example.com [1] => (comment)localpart@example.com [2] => "this is v@lid!"@example.com [3] => "much.more unusual"@example.com [4] => postbox@com [5] => admin@mailserver1 [6] => "()<>[]:,;@\"\\!#$%&'*+-/=?^_`{}| ~.a"@example.org [7] => " "@example.org )
Output for 5.2.11 - 5.2.13, 5.3.1 - 5.3.2
rfc valid, filter_var invalid email: (comment)localpart@example.comrfc valid, filter_var invalid email: admin@mailserver1rfc valid, filter_var invalid email: "()<>[]:,;@\"\\!#$%&'*+-/=?^_`{}| ~.a"@example.orgvalid: Array ( [0] => localpart.ending.with.dot.@example.com [1] => "this is v@lid!"@example.com [2] => "much.more unusual"@example.com [3] => postbox@com [4] => " "@example.org ) invalid: Array ( [0] => (comment)localpart@example.com [1] => admin@mailserver1 [2] => "()<>[]:,;@\"\\!#$%&'*+-/=?^_`{}| ~.a"@example.org )
Output for 5.2.9 - 5.2.10, 5.3.0
rfc valid, filter_var invalid email: (comment)localpart@example.comrfc valid, filter_var invalid email: "()<>[]:,;@\"\\!#$%&'*+-/=?^_`{}| ~.a"@example.orgvalid: Array ( [0] => localpart.ending.with.dot.@example.com [1] => "this is v@lid!"@example.com [2] => "much.more unusual"@example.com [3] => postbox@com [4] => admin@mailserver1 [5] => " "@example.org ) invalid: Array ( [0] => (comment)localpart@example.com [1] => "()<>[]:,;@\"\\!#$%&'*+-/=?^_`{}| ~.a"@example.org )
Output for 5.2.1 - 5.2.8
rfc valid, filter_var invalid email: localpart.ending.with.dot.@example.comrfc valid, filter_var invalid email: (comment)localpart@example.comrfc valid, filter_var invalid email: postbox@comrfc valid, filter_var invalid email: admin@mailserver1rfc valid, filter_var invalid email: "()<>[]:,;@\"\\!#$%&'*+-/=?^_`{}| ~.a"@example.orgvalid: Array ( [0] => "this is v@lid!"@example.com [1] => "much.more unusual"@example.com [2] => " "@example.org ) invalid: Array ( [0] => localpart.ending.with.dot.@example.com [1] => (comment)localpart@example.com [2] => postbox@com [3] => admin@mailserver1 [4] => "()<>[]:,;@\"\\!#$%&'*+-/=?^_`{}| ~.a"@example.org )
Output for 5.2.0
rfc valid, filter_var invalid email: localpart.ending.with.dot.@example.comrfc valid, filter_var invalid email: (comment)localpart@example.comrfc valid, filter_var invalid email: "this is v@lid!"@example.comrfc valid, filter_var invalid email: postbox@comrfc valid, filter_var invalid email: admin@mailserver1rfc valid, filter_var invalid email: "()<>[]:,;@\"\\!#$%&'*+-/=?^_`{}| ~.a"@example.orgvalid: Array ( [0] => "much.more unusual"@example.com [1] => " "@example.org ) invalid: Array ( [0] => localpart.ending.with.dot.@example.com [1] => (comment)localpart@example.com [2] => "this is v@lid!"@example.com [3] => postbox@com [4] => admin@mailserver1 [5] => "()<>[]:,;@\"\\!#$%&'*+-/=?^_`{}| ~.a"@example.org )
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Call to undefined function filter_var() in /in/4nYrM on line 15
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: filter_var() in /in/4nYrM on line 15
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: filter_var() in /in/4nYrM on line 15
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: filter_var() in /in/4nYrM on line 15

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