https://github.com/dominicsayers/isemail

Checks an email address against the following RFCs: 3696, 1123, 4291, 5321, 5322
https://github.com/dominicsayers/isemail

Last synced: 10 days ago
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Checks an email address against the following RFCs: 3696, 1123, 4291, 5321, 5322

• Host: GitHub
• URL: https://github.com/dominicsayers/isemail
• Owner: dominicsayers
• License: bsd-3-clause
• Created: 2009-02-11T15:16:57.000Z (over 15 years ago)
• Default Branch: master
• Last Pushed: 2021-01-28T20:02:46.000Z (almost 4 years ago)
• Last Synced: 2024-05-22T06:44:13.135Z (6 months ago)
• Language: PHP
• Homepage: https://isemail.info
• Size: 176 KB
• Stars: 291
• Watchers: 23
• Forks: 46
• Open Issues: 9
• Metadata Files:
  • Readme: readme.md
  • License: license.md

Awesome Lists containing this project

• favorite-link - 检查以下 RFC 的电子邮件地址：3696,1123,4291,5321,5322 isemail.info

README

        
is_email()

==========

Copyright 2008-2016 Dominic Sayers 

https://isemail.info

BSD License (https://www.opensource.org/licenses/bsd-license.php)

How to use is_email()

---------------------

1.  Add the downloaded file is_email.php to your project

1.  In your scripts use it like this:

```php

	require_once 'is_email.php';

	if (is_email($email)) echo "$email is a valid email address";

```

1.  If you want to return detailed diagnostic error codes then you can ask

is_email to do so. Something like this should work:

```php

	require_once 'is_email.php';

	$email = '[email protected]';

	$result = is_email($email, true, true);

	if ($result === ISEMAIL_VALID) {

		echo "$email is a valid email address";

	} else if ($result < ISEMAIL_THRESHOLD) {

		echo "Warning! $email has unusual features (result code $result)";

	} else {

		echo "$email is not a valid email address (result code $result)";

	}

```

1.  Example scripts are in the extras folder

Version history

---------------

| Date | Component | Version | Notes |

| ---- | --------- | ------- | ----- |

| 2016-12-07 | (all) | 3.0.7 | Semantic version numbering |

| 2016-12-05 | (all) | 3.06 | Changed all http links to https. Updated my links. Updated copyright. Clarified license |

| 2013-11-29 | tests.xml | 3.05 | Changed Test #71 from ISEMAIL_RFC5321 to ISEMAIL_DEPREC |

| 2013-11-29 | meta.xml | 3.05 | Changed category of ISEMAIL_RFC5321_IPV6DEPRECATED to ISEMAIL_DEPREC |

| 2011-07-14 | tests.xml | 3.04 | Changed my link to https://isemail.info |

| 2011-05-23 | tests.xml | 3.02 | tests.php:  Argument no longer passed by reference (deprecated). Test#32: Changed domain to c--n.com because g--a.com no longer has an MX record. |

| 2010-11-15 | meta.xml | 3.03 | Clarified definition of Valid for numpties |

| 2010-10-18 | tests.xml | 3.0 |New schema designed to enhance fault identification. |

| 2010-10-18 | is_email.php | 3.0 | Forensic categorization of email validity |