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<?php $valid = array('first.last@iana.org', '1234567890123456789012345678901234567890123456789012345678901234@iana.org', '"first\"last"@iana.org', '"first@last"@iana.org', '"first\last"@iana.org', //'x@x23456789.x23456789.x23456789.x23456789.x23456789.x23456789.x23456789.x23456789.x23456789.x23456789', //'1234567890123456789012345678901234567890123456789012345678@1234567890123456789012345678901234567890123456 [...]', 'first.last@[12.34.56.78]', 'first.last@[IPv6:::12.34.56.78]', 'first.last@[IPv6:1111:2222:3333::4444:12.34.56.78]', 'first.last@[IPv6:1111:2222:3333:4444:5555:6666:12.34.56.78]', 'first.last@[IPv6:::1111:2222:3333:4444:5555:6666]', 'first.last@[IPv6:1111:2222:3333::4444:5555:6666]', 'first.last@[IPv6:1111:2222:3333:4444:5555:6666::]', 'first.last@[IPv6:1111:2222:3333:4444:5555:6666:7777:8888]', 'first.last@x23456789012345678901234567890123456789012345678901234567890123.iana.org', 'first.last@3com.com', 'first.last@123.iana.org', '"first\last"@iana.org', 'first.last@[IPv6:1111:2222:3333::4444:5555:12.34.56.78]', 'first.last@[IPv6:1111:2222:3333::4444:5555:6666:7777]', 'first.last@example.123', 'first.last@com', '"Abc\@def"@iana.org', '"Fred\ Bloggs"@iana.org', '"Joe.\Blow"@iana.org', '"Abc@def"@iana.org', '"Fred Bloggs"@iana.org', 'user+mailbox@iana.org', 'customer/department=shipping@iana.org', '$A12345@iana.org', '!def!xyz%abc@iana.org', '_somename@iana.org', 'dclo@us.ibm.com', 'peter.piper@iana.org', '"Doug \"Ace\" L."@iana.org', 'test@iana.org', 'TEST@iana.org', '1234567890@iana.org', 'test+test@iana.org', 'test-test@iana.org', 't*est@iana.org', '+1~1+@iana.org', '{_test_}@iana.org', '"[[ test ]]"@iana.org', 'test.test@iana.org', '"test.test"@iana.org', 'test."test"@iana.org', '"test@test"@iana.org', 'test@123.123.123.x123', 'test@123.123.123.123', 'test@[123.123.123.123]', 'test@example.iana.org', 'test@example.example.iana.org', '"test\test"@iana.org', 'test@example', '"test\blah"@iana.org', '"test\blah"@iana.org', '"test\"blah"@iana.org', 'customer/department@iana.org', '_Yosemite.Sam@iana.org', '~@iana.org', '"Austin@Powers"@iana.org', 'Ima.Fool@iana.org', '"Ima.Fool"@iana.org', '"Ima Fool"@iana.org', '"first"."last"@iana.org', '"first".middle."last"@iana.org', '"first".last@iana.org', 'first."last"@iana.org', '"first"."middle"."last"@iana.org', '"first.middle"."last"@iana.org', '"first.middle.last"@iana.org', '"first..last"@iana.org', '"first\\\"last"@iana.org', 'first."mid\dle"."last"@iana.org', '"test blah"@iana.org', '(foo)cal(bar)@(baz)iamcal.com(quux)', 'cal@iamcal(woo).(yay)com', 'cal(woo(yay)hoopla)@iamcal.com', 'cal(foo\@bar)@iamcal.com', 'cal(foo\)bar)@iamcal.com', 'first().last@iana.org', 'pete(his account)@silly.test(his host)', 'c@(Chris\'s host.)public.example', 'jdoe@machine(comment). example', '1234 @ local(blah) .machine .example', 'first(abc.def).last@iana.org', 'first(a"bc.def).last@iana.org', 'first.(")middle.last(")@iana.org', 'first(abc\(def)@iana.org', 'first.last@x(1234567890123456789012345678901234567890123456789012345678901234567890).com', 'a(a(b(c)d(e(f))g)h(i)j)@iana.org', 'name.lastname@domain.com', 'a@b', 'a@bar.com', 'aaa@[123.123.123.123]', 'a@bar', 'a-b@bar.com', '+@b.c', '+@b.com', 'a@b.co-foo.uk', '"hello my name is"@stutter.com', '"Test \"Fail\" Ing"@iana.org@about.museum', 'shaitan@my-domain.thisisminekthx', 'foobar@192.168.0.1', '"Joe\Blow"@iana.org', 'HM2Kinsists@(that comments are allowed)this.is.ok', 'user%uucp!path@berkeley.edu', 'first.last @iana.org', 'cdburgess+!#$%&\'*-/=?+_{}|~test@gmail.com', 'first.last@[IPv6:::a2:a3:a4:b1:b2:b3:b4]', 'first.last@[IPv6:a1:a2:a3:a4:b1:b2:b3::]', 'first.last@[IPv6:::]', 'first.last@[IPv6:::b4]', 'first.last@[IPv6:::b3:b4]', 'first.last@[IPv6:a1::b4]', 'first.last@[IPv6:a1::]', 'first.last@[IPv6:a1:a2::]', 'first.last@[IPv6:0123:4567:89ab:cdef::]', 'first.last@[IPv6:0123:4567:89ab:CDEF::]', 'first.last@[IPv6:::a3:a4:b1:ffff:11.22.33.44]', 'first.last@[IPv6:::a2:a3:a4:b1:ffff:11.22.33.44]', 'first.last@[IPv6:a1:a2:a3:a4::11.22.33.44]', 'first.last@[IPv6:a1:a2:a3:a4:b1::11.22.33.44]', 'first.last@[IPv6:a1::11.22.33.44]', 'first.last@[IPv6:a1:a2::11.22.33.44]', 'first.last@[IPv6:0123:4567:89ab:cdef::11.22.33.44]', 'first.last@[IPv6:0123:4567:89ab:CDEF::11.22.33.44]', 'first.last@[IPv6:a1::b2:11.22.33.44]', 'test@test.com', 'test@xn--example.com', 'test@example.com', ); $invalid = array( 'first.last@sub.do,com', 'first\@last@iana.org', //'123456789012345678901234567890123456789012345678901234567890@12345678901234567890123456789012345678901234 [...]', 'first.last', '12345678901234567890123456789012345678901234567890123456789012345@iana.org', '.first.last@iana.org', 'first.last.@iana.org', 'first..last@iana.org', '"first"last"@iana.org', '"""@iana.org', '"\"@iana.org', '""@iana.org', 'first\@last@iana.org', 'first.last@', //'x@x23456789.x23456789.x23456789.x23456789.x23456789.x23456789.x23456789.x23456789.x23456789.x23456789.x23 [...]', 'first.last@[.12.34.56.78]', 'first.last@[12.34.56.789]', 'first.last@[::12.34.56.78]', 'first.last@[IPv5:::12.34.56.78]', 'first.last@[IPv6:1111:2222:3333:4444:5555:12.34.56.78]', 'first.last@[IPv6:1111:2222:3333:4444:5555:6666:7777:12.34.56.78]', 'first.last@[IPv6:1111:2222:3333:4444:5555:6666:7777]', 'first.last@[IPv6:1111:2222:3333:4444:5555:6666:7777:8888:9999]', 'first.last@[IPv6:1111:2222::3333::4444:5555:6666]', 'first.last@[IPv6:1111:2222:333x::4444:5555]', 'first.last@[IPv6:1111:2222:33333::4444:5555]', 'first.last@-xample.com', 'first.last@exampl-.com', 'first.last@x234567890123456789012345678901234567890123456789012345678901234.iana.org', 'abc\@def@iana.org', 'abc\@iana.org', 'Doug\ \"Ace\"\ Lovell@iana.org', 'abc@def@iana.org', 'abc\@def@iana.org', 'abc\@iana.org', '@iana.org', 'doug@', '"qu@iana.org', 'ote"@iana.org', '.dot@iana.org', 'dot.@iana.org', 'two..dot@iana.org', '"Doug "Ace" L."@iana.org', 'Doug\ \"Ace\"\ L\.@iana.org', 'hello world@iana.org', 'gatsby@f.sc.ot.t.f.i.tzg.era.l.d.', 'test.iana.org', 'test.@iana.org', 'test..test@iana.org', '.test@iana.org', 'test@test@iana.org', 'test@@iana.org', '-- test --@iana.org', '[test]@iana.org', '"test"test"@iana.org', '()[]\;:,><@iana.org', 'test@.', 'test@example.', 'test@.org', //'test@1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 [...]', 'test@[123.123.123.123', 'test@123.123.123.123]', 'NotAnEmail', '@NotAnEmail', '"test"blah"@iana.org', '.wooly@iana.org', 'wo..oly@iana.org', 'pootietang.@iana.org', '.@iana.org', 'Ima Fool@iana.org', 'phil.h\@\@ck@haacked.com', 'foo@[\1.2.3.4]', 'first."".last@iana.org', 'first\last@iana.org', 'Abc\@def@iana.org', 'Fred\ Bloggs@iana.org', 'Joe.\Blow@iana.org', 'first.last@[IPv6:1111:2222:3333:4444:5555:6666:12.34.567.89]', '{^c\@**Dog^}@cartoon.com', '"foo"(yay)@(hoopla)[1.2.3.4]', 'cal(foo(bar)@iamcal.com', 'cal(foo)bar)@iamcal.com', 'cal(foo\)@iamcal.com', //'first(12345678901234567890123456789012345678901234567890)last@(123456789012345678901234567890123456789012 [...]', 'first(middle)last@iana.org', //'first(abc("def".ghi).mno)middle(abc("def".ghi).mno).last@(abc("def".ghi).mno)example(abc("def".ghi).mno). [...]', 'a(a(b(c)d(e(f))g)(h(i)j)@iana.org', '.@', '@bar.com', '@@bar.com', 'aaa.com', 'aaa@.com', 'aaa@.123', 'aaa@[123.123.123.123]a', 'aaa@[123.123.123.333]', 'a@bar.com.', 'a@-b.com', 'a@b-.com', '-@..com', '-@a..com@about.museum-', 'test@...........com', '"Unicode NULL "@char.com', 'Unicode NULL @char.com', 'first.last@[IPv6::]', 'first.last@[IPv6::::]', 'first.last@[IPv6::b4]', 'first.last@[IPv6::::b4]', 'first.last@[IPv6::b3:b4]', 'first.last@[IPv6::::b3:b4]', 'first.last@[IPv6:a1:::b4]', 'first.last@[IPv6:a1:]', 'first.last@[IPv6:a1:::]', 'first.last@[IPv6:a1:a2:]', 'first.last@[IPv6:a1:a2:::]', 'first.last@[IPv6::11.22.33.44]', 'first.last@[IPv6::::11.22.33.44]', 'first.last@[IPv6:a1:11.22.33.44]', 'first.last@[IPv6:a1:::11.22.33.44]', 'first.last@[IPv6:a1:a2:::11.22.33.44]', 'first.last@[IPv6:0123:4567:89ab:cdef::11.22.33.xx]', 'first.last@[IPv6:0123:4567:89ab:CDEFF::11.22.33.44]', 'first.last@[IPv6:a1::a4:b1::b4:11.22.33.44]', 'first.last@[IPv6:a1::11.22.33]', 'first.last@[IPv6:a1::11.22.33.44.55]', 'first.last@[IPv6:a1::b211.22.33.44]', 'first.last@[IPv6:a1::b2::11.22.33.44]', 'first.last@[IPv6:a1::b3:]', 'first.last@[IPv6::a2::b4]', 'first.last@[IPv6:a1:a2:a3:a4:b1:b2:b3:]', 'first.last@[IPv6::a2:a3:a4:b1:b2:b3:b4]', 'first.last@[IPv6:a1:a2:a3:a4::b1:b2:b3:b4]', ); $counter = 0; foreach ($valid as $adr) { if ($adr !== filter_var($adr, FILTER_VALIDATE_EMAIL)) { $counter++; //echo "$adr INVALID when it should be VALID\n"; } } foreach ($invalid as $adr) { if (false !== filter_var($adr, FILTER_VALIDATE_EMAIL)) { $counter++; //echo "$adr VALID when it should be INVALID\n"; } } echo $counter, "\n";