Re: code snippet to verify email addresses

From: Date: Mon, 17 Jul 2000 19:49:30 +0000
Subject: Re: code snippet to verify email addresses
References: 1  Groups: php.general 
Request: Send a blank email to php-general+get-6964@lists.php.net to get a copy of this message
i ran across one a while ago that was very complete... i think i have it here somewhere.... yep. here it is: <? function MailVal($Addr, $Level, $Timeout = 15000) { // Valid Top-Level Domains $gTLDs = "com:net:org:edu:gov:mil:int:arpa:"; $CCs = "ad:ae:af:ag:ai:al:am:an:ao:aq:ar:as:at:au:aw:az:ba:bb:bd:be:bf:". "bg:bh:bi:bj:bm:bn:bo:br:bs:bt:bv:bw:by:bz:ca:cc:cf:cd:cg:ch:ci:". "ck:cl:cm:cn:co:cr:cs:cu:cv:cx:cy:cz:de:dj:dk:dm:do:dz:ec:ee:eg:". "eh:er:es:et:fi:fj:fk:fm:fo:fr:fx:ga:gb:gd:ge:gf:gh:gi:gl:gm:gn:". "gp:gq:gr:gs:gt:gu:gw:gy:hk:hm:hn:hr:ht:hu:id:ie:il:in:io:iq:ir:". "is:it:jm:jo:jp:ke:kg:kh:ki:km:kn:kp:kr:kw:ky:kz:la:lb:lc:li:lk:". "lr:ls:lt:lu:lv:ly:ma:mc:md:mg:mh:mk:ml:mm:mn:mo:mp:mq:mr:ms:mt:". "mu:mv:mw:mx:my:mz:na:nc:ne:nf:ng:ni:nl:no:np:nr:nt:nu:nz:om:pa:". "pe:pf:pg:ph:pk:pl:pm:pn:pr:pt:pw:py:qa:re:ro:ru:rw:sa:sb:sc:sd:". "se:sg:sh:si:sj:sk:sl:sm:sn:so:sr:st:su:sv:sy:sz:tc:td:tf:tg:th:". "tj:tk:tm:tn:to:tp:tr:tt:tv:tw:tz:ua:ug:uk:um:us:uy:uz:va:vc:ve:". "vg:vi:vn:vu:wf:ws:ye:yt:yu:za:zm:zr:zw:"; // The countries can have their own 'TLDs', e.g. mydomain.com.au $cTLDs = "com:net:org:edu:gov:mil:co:ne:or:ed:go:mi:"; $fail = 0; // Shift the address to lowercase to simplify checking $Addr = strtolower($Addr); // Split the Address into user and domain parts $UD = explode("@", $Addr); if (sizeof($UD) != 2) $fail = 1; // Split the domain part into its Levels $Levels = explode(".", $UD[1]); $sLevels = sizeof($Levels); if ($sLevels < 2) $fail = 1; // Get the TLD, strip off trailing ] } ) > and check the length $tld = $Levels[$sLevels-1]; $tld = ereg_replace("[>)}]$|]$", "", $tld); if (strlen($tld) < 2 || strlen($tld) > 3 && $tld != "arpa") $fail = 1; $Level--; // If the string after the last dot isn't in the generic TLDs or country codes, it's invalid. if ($Level && !$fail) { $Level--; if (!ereg($tld.":", $gTLDs) && !ereg($tld.":", $CCs)) $fail = 2; } // If it's a country code, check for a country TLD; add on the domain name. if ($Level && !$fail) { $cd = $sLevels - 2; $domain = $Levels[$cd].".".$tld; if (ereg($Levels[$cd].":", $cTLDs)) { $cd--; $domain = $Levels[$cd].".".$domain; } } // See if there's an MX record for the domain if ($Level && !$fail) { $Level--; if (!getmxrr($domain, $mxhosts, $weight)) $fail = 3; } // Attempt to connect to port 25 on an MX host if ($Level && !$fail) { $Level--; while (!$sh && list($nul, $mxhost) = each($mxhosts)) $sh = fsockopen($mxhost, 25); if (!$sh) $fail = 4; } // See if anyone answers if ($Level && !$fail) { $Level--; set_socket_blocking($sh, false); $out = ""; $t = 0; while ($t++ < $Timeout && !$out) $out = fgets($sh, 256); if (!ereg("^220", $out)) $fail = 5; } if ($sh) fclose($sh); return $fail; } //MailVal ?> ----- Original Message ----- From: "Eric Wood" <eric@interplas.com> To: <php-general@lists.php.net> Sent: Monday, July 17, 2000 2:37 PM Subject: [PHP] code snippet to verify email addresses > Anyone have a code snippet they would give me to verify that an email > address is syntactically correct? > > Thanks, > -Eric Wood > > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > For additional commands, e-mail: php-general-help@lists.php.net > To contact the list administrators, e-mail: php-list-admin@lists.php.net > >

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