preg question
This is a discussion on preg question within the PHP General forums, part of the PHP Programming Forums category; Hi all, I am trying to do a simple validation of an email address being submitted. I have the @ sign ...
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11-13-2003
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preg question
Hi all,
I am trying to do a simple validation of an email address being submitted. I have the @ sign being validated, but I can't get the period to work.. Can someone help me out? Here's my code.. if ($_POST['Travel_Request_Email_Address'] != "") { if (preg_match_all("/(@)/", $_POST['Travel_Request_Email_Address'], $match) != 1) { $errorcount++; $error = $error . " " . $errorcount .") <font color=\"red\">Email Address</font> field does not contain @<br> \n"; } else if (preg_match_all("/(.)/", $_POST['Travel_Request_Email_Address'], $match) < 1) { $errorcount++; $error = $error . " " . $errorcount .") <font color=\"red\">Email Address</font> field does not contain .<br> \n"; } else { $_SESSION['Travel_Request_Email_Address'] = $_POST['Travel_Request_Email_Address']; } } else { $errorcount++; $error = $error . " " . $errorcount .") <font color=\"red\">Email Address</font> field is empty<br>\n"; } Thanks, Jake McHenry Nittany Travel MIS Coordinator http://www.nittanytravel.com 
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11-13-2003
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RE: [PHP] preg question
> -----Original Message-----
> From: Jake McHenry [mailto:linux@nittanytravel.com] > Sent: Thursday, November 13, 2003 2:50 PM > To: php-general@lists.php.net > Subject: [php] preg question > > > Hi all, > > I am trying to do a simple validation of an email address > being submitted. I have the @ sign being validated, but I > can't get the period to work.. Can someone help me out? > > Here's my code.. > > if ($_POST['Travel_Request_Email_Address'] != "") > { > if (preg_match_all("/(@)/", > $_POST['Travel_Request_Email_Address'], $match) != 1) > { > $errorcount++; > $error = $error . " " . > $errorcount .") <font color=\"red\">Email Address</font> > field does not contain @<br> \n"; > } > else if (preg_match_all("/(.)/", > $_POST['Travel_Request_Email_Address'], $match) < 1) > { > $errorcount++; > $error = $error . " " . > $errorcount .") <font color=\"red\">Email Address</font> > field does not contain .<br> \n"; > } > else > { > $_SESSION['Travel_Request_Email_Address'] = > $_POST['Travel_Request_Email_Address']; > } > } > else > { > $errorcount++; > $error = $error . " " . > $errorcount .") <font color=\"red\">Email Address</font> > field is empty<br>\n"; > } > > Thanks, > > Jake McHenry > Nittany Travel MIS Coordinator > http://www.nittanytravel.com > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > I think I got it, I was just messing with the code, and added a slash before the ., and it seems to work. Is this the correct way to handle this? Thanks, Jake McHenry Nittany Travel MIS Coordinator http://www.nittanytravel.com
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11-13-2003
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Re: [PHP] preg question
Jake McHenry wrote:
>>-----Original Message----- >>From: Jake McHenry [mailto:linux@nittanytravel.com] >>Sent: Thursday, November 13, 2003 2:50 PM >>To: php-general@lists.php.net >>Subject: [php] preg question >> >> >>Hi all, >> >>I am trying to do a simple validation of an email address >>being submitted. I have the @ sign being validated, but I >>can't get the period to work.. Can someone help me out? >> >>Here's my code.. >> >> if ($_POST['Travel_Request_Email_Address'] != "") >> { >> if (preg_match_all("/(@)/", >>$_POST['Travel_Request_Email_Address'], $match) != 1) >> { >> $errorcount++; >> $error = $error . " " . >>$errorcount .") <font color=\"red\">Email Address</font> >>field does not contain @<br> \n"; >> } >> else if (preg_match_all("/(.)/", >>$_POST['Travel_Request_Email_Address'], $match) < 1) >> { >> $errorcount++; >> $error = $error . " " . >>$errorcount .") <font color=\"red\">Email Address</font> >>field does not contain .<br> \n"; >> } >> else >> { >> $_SESSION['Travel_Request_Email_Address'] = >>$_POST['Travel_Request_Email_Address']; >> } >> } >> else >> { >> $errorcount++; >> $error = $error . " " . >>$errorcount .") <font color=\"red\">Email Address</font> >>field is empty<br>\n"; >> } >> >>Thanks, >> >>Jake McHenry >>Nittany Travel MIS Coordinator >>http://www.nittanytravel.com >> >>-- >>PHP General Mailing List (http://www.php.net/) >>To unsubscribe, visit: http://www.php.net/unsub.php >> >> > > > > I think I got it, I was just messing with the code, and added a slash > before the ., and it seems to work. Is this the correct way to handle > this? Yes, you have to escape the period. If you're just checking to see if there's an at symbol and a period, you don't really need preg_match_all if ( ! preg_match ( "/@/", $email ) ) { // No @ symbol } if ( ! preg_match ( "/\./", $email ) ) { // No period } -- By-Tor.com It's all about the Rush http://www.by-tor.com
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11-13-2003
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RE: [PHP] preg question
The period is a modifier within the expression (see manual on "pattern
syntax" link below). You need to escape it with a back slash: \. http://www.php.net/manual/en/pcre.pattern.syntax.php -- Kevin -----Original Message----- From: Jake McHenry [mailto:linux@nittanytravel.com] Sent: Thursday, November 13, 2003 12:50 PM To: php-general@lists.php.net Subject: [php] preg question Hi all, I am trying to do a simple validation of an email address being submitted. I have the @ sign being validated, but I can't get the period to work.. Can someone help me out? Here's my code.. if ($_POST['Travel_Request_Email_Address'] != "") { if (preg_match_all("/(@)/", $_POST['Travel_Request_Email_Address'], $match) != 1) { $errorcount++; $error = $error . " " . $errorcount .") <font color=\"red\">Email Address</font> field does not contain @<br> \n"; } else if (preg_match_all("/(.)/", $_POST['Travel_Request_Email_Address'], $match) < 1) { $errorcount++; $error = $error . " " . $errorcount .") <font color=\"red\">Email Address</font> field does not contain .<br> \n"; } else { $_SESSION['Travel_Request_Email_Address'] = $_POST['Travel_Request_Email_Address']; } } else { $errorcount++; $error = $error . " " . $errorcount .") <font color=\"red\">Email Address</font> field is empty<br>\n"; } Thanks, Jake McHenry Nittany Travel MIS Coordinator http://www.nittanytravel.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
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11-13-2003
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RE: [PHP] preg question
What else would I need to check for? I'm tired.. Running on 2 pots of
coffee.. All I can think of is the @ and at least one . After the @, then at least 2 characters after the last . I haven't had much experience with regular expresssions, all of the stuff I've done has been for my intranet, and I didn't really need to validate.. Now I'm on a project where it's public........ Thanks for the help Thanks, Jake McHenry Nittany Travel MIS Coordinator http://www.nittanytravel.com > -----Original Message----- > From: John Nichel [mailto:jnichel@by-tor.com] > Sent: Thursday, November 13, 2003 3:09 PM > To: Jake McHenry > Cc: php-general@lists.php.net > Subject: Re: [php] preg question > > > Jake McHenry wrote: > > >>-----Original Message----- > >>From: Jake McHenry [mailto:linux@nittanytravel.com] > >>Sent: Thursday, November 13, 2003 2:50 PM > >>To: php-general@lists.php.net > >>Subject: [php] preg question > >> > >> > >>Hi all, > >> > >>I am trying to do a simple validation of an email address > >>being submitted. I have the @ sign being validated, but I > >>can't get the period to work.. Can someone help me out? > >> > >>Here's my code.. > >> > >> if ($_POST['Travel_Request_Email_Address'] != "") > >> { > >> if (preg_match_all("/(@)/", > >>$_POST['Travel_Request_Email_Address'], $match) != 1) > >> { > >> $errorcount++; > >> $error = $error . " " . > >>$errorcount .") <font color=\"red\">Email Address</font> > >>field does not contain @<br> \n"; > >> } > >> else if (preg_match_all("/(.)/", > >>$_POST['Travel_Request_Email_Address'], $match) < 1) > >> { > >> $errorcount++; > >> $error = $error . " " . > >>$errorcount .") <font color=\"red\">Email Address</font> > >>field does not contain .<br> \n"; > >> } > >> else > >> { > >> $_SESSION['Travel_Request_Email_Address'] = > >>$_POST['Travel_Request_Email_Address']; > >> } > >> } > >> else > >> { > >> $errorcount++; > >> $error = $error . " " . > >>$errorcount .") <font color=\"red\">Email Address</font> > >>field is empty<br>\n"; > >> } > >> > >>Thanks, > >> > >>Jake McHenry > >>Nittany Travel MIS Coordinator > >>http://www.nittanytravel.com > >> > >>-- > >>PHP General Mailing List (http://www.php.net/) > >>To unsubscribe, visit: http://www.php.net/unsub.php > >> > >> > > > > > > > > I think I got it, I was just messing with the code, and > added a slash > > before the ., and it seems to work. Is this the correct way > to handle > > this? > > Yes, you have to escape the period. If you're just checking > to see if > there's an at symbol and a period, you don't really need > preg_match_all > > if ( ! preg_match ( "/@/", $email ) ) { > // No @ symbol > } > if ( ! preg_match ( "/\./", $email ) ) { > // No period > } > > -- > By-Tor.com > It's all about the Rush > http://www.by-tor.com >
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11-13-2003
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Re: [PHP] preg question
On Thu, Nov 13, 2003 at 03:17:14PM -0500, Jake McHenry wrote:
> What else would I need to check for? I'm tired.. Running on 2 pots of > coffee.. All I can think of is the @ and at least one . After the @, > then at least 2 characters after the last . > > I haven't had much experience with regular expresssions, all of the > stuff I've done has been for my intranet, and I didn't really need to > validate.. Now I'm on a project where it's public........ http://www.zend.com/codex.php?id=861&single=1 http://www.zend.com/codex.php?id=88&single=1
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11-13-2003
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RE: [PHP] preg question
> -----Original Message-----
> From: zhuravlev alexander [mailto:a_zhuravlev@hotmail.com] > Sent: Thursday, November 13, 2003 3:26 PM > To: Jake McHenry > Cc: 'John Nichel'; php-general@lists.php.net > Subject: Re: [php] preg question > > > On Thu, Nov 13, 2003 at 03:17:14PM -0500, Jake McHenry wrote: > > What else would I need to check for? I'm tired.. Running on > 2 pots of > > coffee.. All I can think of is the @ and at least one . > After the @, > > then at least 2 characters after the last . > > > > I haven't had much experience with regular expresssions, all of the > > stuff I've done has been for my intranet, and I didn't > really need to > > validate.. Now I'm on a project where it's public........ > http://www.zend.com/codex.php?id=861&single=1 http://www.zend.com/codex.php?id=88&single=1 Wow, thanks for the links... That definatly speeds things up a little for me. Thanks, Jake McHenry Nittany Travel MIS Coordinator http://www.nittanytravel.com
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