In php, I have a string like this:
$string = "[email protected] MIME-Version: bla bla bla";
How do i get the email address only? Is there any easy way to get the value??
EDIT:
THANKS guys. Using regular expression solved my problem. You guys are the BEST!!
If the email address is always at the front of the string, the easiest way to get it is simply to split the string on all instances of the space character, and then just take the first value from the resulting array.
Of course, make sure to check it is something resembling an email address before you use it.
See the PHP 'split' function for details.
Have a look at Regular expressions in PHP.
With regular expressions you can identify any text pattern in a given string. They are incredibly useful. So even though you can stick with copy-pasting a code snippet from another answer for now, you should consider digging a little more into it.
It can be a bit complex at first but it's definitely worth the effort.
If it's really space-separated:
php > $matches = array();
php > preg_match('/^[^ ]*/', $string, $matches);
php > print_r($matches[0]);
[email protected]
Match to a regular expression like:
([A-Za-z0-9-]+)@([A-Za-z0-9])\.([a-z]{3})
or something similar
Try something like that:
$string = "[email protected] MIME-Version: bla bla bla";
$matches = array();
preg_match('/(.*)@(.*)\.[a-zA-Z]{1,9}/',$string,$matches);
echo $matches[0];
Email addresses are really tricky to filter using regular expressions because there are so many possible allowable characters. It can be done, but you may have to tweak it some to get exactly what you need.
You could start with something like this:
$string = "[email protected] MIME-Version: bla bla bla";
$matches = array();
$pattern = '/[A-Za-z0-9_-]+@[A-Za-z0-9_-]+\.([A-Za-z0-9_-][A-Za-z0-9_]+)/'
preg_match($pattern,$string,$matches);
And then $matches should contain your email address.
If you're not sure which part of the space-separated string is the e-mail address, you can split the string by spaces and use
filter_var($email, FILTER_VALIDATE_EMAIL)
on each substring.
http://www.ex-parrot.com/~pdw/Mail-RFC822-Address.html
Do you really want to use a regexp? Just split by spaces.