PHP regex email addres(ses) from text, sometimes right before a full stop












0















I have texts that can contain one email address or multiple ones. I use regex to match these. First I used: (from this previous question)



[A-Za-z0-9_-]+@[A-Za-z0-9_-]+.([A-Za-z0-9_-][A-Za-z0-9_]+)


This caused two problems. In the case a . was used before the @ this was problematic, but also if an email address ended in two or more domain extensions (for example ...@domain.co.uk) it did not work. So I changed this expression to 



^([a-z0-9_.-]+)@([da-z.-]+).([a-z.]{2,6})


This solves both first problems, but creates a new one. If in the text the email address is right before a full stop, this is now included in the address! So this text gives me problems:



Please email us at: some@example.com. You can also mail us at some@example.co.uk. Etc...


Is there a way to exclude this last . if it is followed by either a blank space or a line break?



ps.
I do not need to validate email addresses, I need to make sure my expression knows where an email address (or multiple) are in a text and when they stop.






php regex







share|improve this question




















  • 1





    You could for example change your regex to ([a-z0-9_.-]+)@((?:[da-z.-]+).)+([a-z]{2,6}) demo. That will repeat the part after the @ sign including the first dot 1+ times. Then omit the dot in the last part.

    – The fourth bird
    Nov 22 '18 at 21:06








  • 1





    @Jeff - That regexe doesn't allow emails with foreign characters, dashes or numbers, like: hello@åä-ö.com, while åä-ö.com actually is a valid domain. You should also be able to have dots in the name-part. When matching email addresses (and URL's), you shouldn't be too strict.

    – Magnus Eriksson
    Nov 22 '18 at 21:15








  • 1





    I had them in there: ..@[A-Za-z0-9_-].. - but of course I forgot about subdomains like spam@sub-domain.my-host.com

    – Jeff
    Nov 22 '18 at 21:23






  • 1





    @DirkJ.Faber absolutely right. Maybe take Magnus' comments about mine (for `ä') into that aswell.

    – Jeff
    Nov 22 '18 at 21:25






  • 1





    Basically, look for a good already made regex for this online. Trying to do it yourself is usually really painful. If you check regexes that takes most rules into account, they are huge...

    – Magnus Eriksson
    Nov 22 '18 at 21:26


















0















I have texts that can contain one email address or multiple ones. I use regex to match these. First I used: (from this previous question)



[A-Za-z0-9_-]+@[A-Za-z0-9_-]+.([A-Za-z0-9_-][A-Za-z0-9_]+)


This caused two problems. In the case a . was used before the @ this was problematic, but also if an email address ended in two or more domain extensions (for example ...@domain.co.uk) it did not work. So I changed this expression to 



^([a-z0-9_.-]+)@([da-z.-]+).([a-z.]{2,6})


This solves both first problems, but creates a new one. If in the text the email address is right before a full stop, this is now included in the address! So this text gives me problems:



Please email us at: some@example.com. You can also mail us at some@example.co.uk. Etc...


Is there a way to exclude this last . if it is followed by either a blank space or a line break?



ps.
I do not need to validate email addresses, I need to make sure my expression knows where an email address (or multiple) are in a text and when they stop.






php regex







share|improve this question




















  • 1





    You could for example change your regex to ([a-z0-9_.-]+)@((?:[da-z.-]+).)+([a-z]{2,6}) demo. That will repeat the part after the @ sign including the first dot 1+ times. Then omit the dot in the last part.

    – The fourth bird
    Nov 22 '18 at 21:06








  • 1





    @Jeff - That regexe doesn't allow emails with foreign characters, dashes or numbers, like: hello@åä-ö.com, while åä-ö.com actually is a valid domain. You should also be able to have dots in the name-part. When matching email addresses (and URL's), you shouldn't be too strict.

    – Magnus Eriksson
    Nov 22 '18 at 21:15








  • 1





    I had them in there: ..@[A-Za-z0-9_-].. - but of course I forgot about subdomains like spam@sub-domain.my-host.com

    – Jeff
    Nov 22 '18 at 21:23






  • 1





    @DirkJ.Faber absolutely right. Maybe take Magnus' comments about mine (for `ä') into that aswell.

    – Jeff
    Nov 22 '18 at 21:25






  • 1





    Basically, look for a good already made regex for this online. Trying to do it yourself is usually really painful. If you check regexes that takes most rules into account, they are huge...

    – Magnus Eriksson
    Nov 22 '18 at 21:26
















0












0








0








I have texts that can contain one email address or multiple ones. I use regex to match these. First I used: (from this previous question)



[A-Za-z0-9_-]+@[A-Za-z0-9_-]+.([A-Za-z0-9_-][A-Za-z0-9_]+)


This caused two problems. In the case a . was used before the @ this was problematic, but also if an email address ended in two or more domain extensions (for example ...@domain.co.uk) it did not work. So I changed this expression to 



^([a-z0-9_.-]+)@([da-z.-]+).([a-z.]{2,6})


This solves both first problems, but creates a new one. If in the text the email address is right before a full stop, this is now included in the address! So this text gives me problems:



Please email us at: some@example.com. You can also mail us at some@example.co.uk. Etc...


Is there a way to exclude this last . if it is followed by either a blank space or a line break?



ps.
I do not need to validate email addresses, I need to make sure my expression knows where an email address (or multiple) are in a text and when they stop.






php regex







share|improve this question
















I have texts that can contain one email address or multiple ones. I use regex to match these. First I used: (from this previous question)



[A-Za-z0-9_-]+@[A-Za-z0-9_-]+.([A-Za-z0-9_-][A-Za-z0-9_]+)


This caused two problems. In the case a . was used before the @ this was problematic, but also if an email address ended in two or more domain extensions (for example ...@domain.co.uk) it did not work. So I changed this expression to 



^([a-z0-9_.-]+)@([da-z.-]+).([a-z.]{2,6})


This solves both first problems, but creates a new one. If in the text the email address is right before a full stop, this is now included in the address! So this text gives me problems:



Please email us at: some@example.com. You can also mail us at some@example.co.uk. Etc...


Is there a way to exclude this last . if it is followed by either a blank space or a line break?



ps.
I do not need to validate email addresses, I need to make sure my expression knows where an email address (or multiple) are in a text and when they stop.






php regex




php regex






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 22 '18 at 22:17







Dirk J. Faber

















asked Nov 22 '18 at 21:00









Dirk J. FaberDirk J. Faber

1,3561317




1,3561317








  • 1





    You could for example change your regex to ([a-z0-9_.-]+)@((?:[da-z.-]+).)+([a-z]{2,6}) demo. That will repeat the part after the @ sign including the first dot 1+ times. Then omit the dot in the last part.

    – The fourth bird
    Nov 22 '18 at 21:06








  • 1





    @Jeff - That regexe doesn't allow emails with foreign characters, dashes or numbers, like: hello@åä-ö.com, while åä-ö.com actually is a valid domain. You should also be able to have dots in the name-part. When matching email addresses (and URL's), you shouldn't be too strict.

    – Magnus Eriksson
    Nov 22 '18 at 21:15








  • 1





    I had them in there: ..@[A-Za-z0-9_-].. - but of course I forgot about subdomains like spam@sub-domain.my-host.com

    – Jeff
    Nov 22 '18 at 21:23






  • 1





    @DirkJ.Faber absolutely right. Maybe take Magnus' comments about mine (for `ä') into that aswell.

    – Jeff
    Nov 22 '18 at 21:25






  • 1





    Basically, look for a good already made regex for this online. Trying to do it yourself is usually really painful. If you check regexes that takes most rules into account, they are huge...

    – Magnus Eriksson
    Nov 22 '18 at 21:26
















  • 1





    You could for example change your regex to ([a-z0-9_.-]+)@((?:[da-z.-]+).)+([a-z]{2,6}) demo. That will repeat the part after the @ sign including the first dot 1+ times. Then omit the dot in the last part.

    – The fourth bird
    Nov 22 '18 at 21:06








  • 1





    @Jeff - That regexe doesn't allow emails with foreign characters, dashes or numbers, like: hello@åä-ö.com, while åä-ö.com actually is a valid domain. You should also be able to have dots in the name-part. When matching email addresses (and URL's), you shouldn't be too strict.

    – Magnus Eriksson
    Nov 22 '18 at 21:15








  • 1





    I had them in there: ..@[A-Za-z0-9_-].. - but of course I forgot about subdomains like spam@sub-domain.my-host.com

    – Jeff
    Nov 22 '18 at 21:23






  • 1





    @DirkJ.Faber absolutely right. Maybe take Magnus' comments about mine (for `ä') into that aswell.

    – Jeff
    Nov 22 '18 at 21:25






  • 1





    Basically, look for a good already made regex for this online. Trying to do it yourself is usually really painful. If you check regexes that takes most rules into account, they are huge...

    – Magnus Eriksson
    Nov 22 '18 at 21:26










1




1





You could for example change your regex to ([a-z0-9_.-]+)@((?:[da-z.-]+).)+([a-z]{2,6}) demo. That will repeat the part after the @ sign including the first dot 1+ times. Then omit the dot in the last part.

– The fourth bird
Nov 22 '18 at 21:06







You could for example change your regex to ([a-z0-9_.-]+)@((?:[da-z.-]+).)+([a-z]{2,6}) demo. That will repeat the part after the @ sign including the first dot 1+ times. Then omit the dot in the last part.

– The fourth bird
Nov 22 '18 at 21:06






1




1





@Jeff - That regexe doesn't allow emails with foreign characters, dashes or numbers, like: hello@åä-ö.com, while åä-ö.com actually is a valid domain. You should also be able to have dots in the name-part. When matching email addresses (and URL's), you shouldn't be too strict.

– Magnus Eriksson
Nov 22 '18 at 21:15







@Jeff - That regexe doesn't allow emails with foreign characters, dashes or numbers, like: hello@åä-ö.com, while åä-ö.com actually is a valid domain. You should also be able to have dots in the name-part. When matching email addresses (and URL's), you shouldn't be too strict.

– Magnus Eriksson
Nov 22 '18 at 21:15






1




1





I had them in there: ..@[A-Za-z0-9_-].. - but of course I forgot about subdomains like spam@sub-domain.my-host.com

– Jeff
Nov 22 '18 at 21:23





I had them in there: ..@[A-Za-z0-9_-].. - but of course I forgot about subdomains like spam@sub-domain.my-host.com

– Jeff
Nov 22 '18 at 21:23




1




1





@DirkJ.Faber absolutely right. Maybe take Magnus' comments about mine (for `ä') into that aswell.

– Jeff
Nov 22 '18 at 21:25





@DirkJ.Faber absolutely right. Maybe take Magnus' comments about mine (for `ä') into that aswell.

– Jeff
Nov 22 '18 at 21:25




1




1





Basically, look for a good already made regex for this online. Trying to do it yourself is usually really painful. If you check regexes that takes most rules into account, they are huge...

– Magnus Eriksson
Nov 22 '18 at 21:26







Basically, look for a good already made regex for this online. Trying to do it yourself is usually really painful. If you check regexes that takes most rules into account, they are huge...

– Magnus Eriksson
Nov 22 '18 at 21:26














1 Answer
1






active

oldest

votes


















1














You may use



/[p{L}0-9_.-]+@[0-9p{L}.-]+.[a-z.]{2,6}b/u


See the regex demo. Or, to only start matching from a letter or digit:



/[p{L}0-9][p{L}0-9_.-]*@[0-9p{L}.-]+.[a-z.]{2,6}b/u


p{L} will match all Unicode base letters (add p{M} if you need to also match diacritics, though I doubt there are any here) and add a word boundary at the end to stop before a dot. Remove all unnecessary groupings that you are not using.



See the PHP demo:



$re = '/[p{L}0-9_.-]+@[0-9p{L}.-]+.[a-z.]{2,6}b/u';

$str = 'Please email us at: some@example.com. You can also mail us at some@example.co.uk. Etc... hello@åä-ö.com

example@so.il.uk';

if (preg_match_all($re, $str, $matches)) {

  print_r($matches[0]);

}


Output:



Array

(

    [0] => some@example.com

    [1] => some@example.co.uk

    [2] => hello@åä-ö.com

    [3] => example@so.il.uk

)





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    1 Answer
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    active

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    active

    oldest

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    active

    oldest

    votes









    1














    You may use



    /[p{L}0-9_.-]+@[0-9p{L}.-]+.[a-z.]{2,6}b/u


    See the regex demo. Or, to only start matching from a letter or digit:



    /[p{L}0-9][p{L}0-9_.-]*@[0-9p{L}.-]+.[a-z.]{2,6}b/u


    p{L} will match all Unicode base letters (add p{M} if you need to also match diacritics, though I doubt there are any here) and add a word boundary at the end to stop before a dot. Remove all unnecessary groupings that you are not using.



    See the PHP demo:



    $re = '/[p{L}0-9_.-]+@[0-9p{L}.-]+.[a-z.]{2,6}b/u';
    
$str = 'Please email us at: some@example.com. You can also mail us at some@example.co.uk. Etc... hello@åä-ö.com
    
example@so.il.uk';
    
if (preg_match_all($re, $str, $matches)) {
    
  print_r($matches[0]);
    
}


    Output:



    Array
    
(
    
    [0] => some@example.com
    
    [1] => some@example.co.uk
    
    [2] => hello@åä-ö.com
    
    [3] => example@so.il.uk
    
)





    share|improve this answer




























      1














      You may use



      /[p{L}0-9_.-]+@[0-9p{L}.-]+.[a-z.]{2,6}b/u


      See the regex demo. Or, to only start matching from a letter or digit:



      /[p{L}0-9][p{L}0-9_.-]*@[0-9p{L}.-]+.[a-z.]{2,6}b/u


      p{L} will match all Unicode base letters (add p{M} if you need to also match diacritics, though I doubt there are any here) and add a word boundary at the end to stop before a dot. Remove all unnecessary groupings that you are not using.



      See the PHP demo:



      $re = '/[p{L}0-9_.-]+@[0-9p{L}.-]+.[a-z.]{2,6}b/u';
      
$str = 'Please email us at: some@example.com. You can also mail us at some@example.co.uk. Etc... hello@åä-ö.com
      
example@so.il.uk';
      
if (preg_match_all($re, $str, $matches)) {
      
  print_r($matches[0]);
      
}


      Output:



      Array
      
(
      
    [0] => some@example.com
      
    [1] => some@example.co.uk
      
    [2] => hello@åä-ö.com
      
    [3] => example@so.il.uk
      
)





      share|improve this answer


























        1












        1








        1







        You may use



        /[p{L}0-9_.-]+@[0-9p{L}.-]+.[a-z.]{2,6}b/u


        See the regex demo. Or, to only start matching from a letter or digit:



        /[p{L}0-9][p{L}0-9_.-]*@[0-9p{L}.-]+.[a-z.]{2,6}b/u


        p{L} will match all Unicode base letters (add p{M} if you need to also match diacritics, though I doubt there are any here) and add a word boundary at the end to stop before a dot. Remove all unnecessary groupings that you are not using.



        See the PHP demo:



        $re = '/[p{L}0-9_.-]+@[0-9p{L}.-]+.[a-z.]{2,6}b/u';
        
$str = 'Please email us at: some@example.com. You can also mail us at some@example.co.uk. Etc... hello@åä-ö.com
        
example@so.il.uk';
        
if (preg_match_all($re, $str, $matches)) {
        
  print_r($matches[0]);
        
}


        Output:



        Array
        
(
        
    [0] => some@example.com
        
    [1] => some@example.co.uk
        
    [2] => hello@åä-ö.com
        
    [3] => example@so.il.uk
        
)





        share|improve this answer













        You may use



        /[p{L}0-9_.-]+@[0-9p{L}.-]+.[a-z.]{2,6}b/u


        See the regex demo. Or, to only start matching from a letter or digit:



        /[p{L}0-9][p{L}0-9_.-]*@[0-9p{L}.-]+.[a-z.]{2,6}b/u


        p{L} will match all Unicode base letters (add p{M} if you need to also match diacritics, though I doubt there are any here) and add a word boundary at the end to stop before a dot. Remove all unnecessary groupings that you are not using.



        See the PHP demo:



        $re = '/[p{L}0-9_.-]+@[0-9p{L}.-]+.[a-z.]{2,6}b/u';
        
$str = 'Please email us at: some@example.com. You can also mail us at some@example.co.uk. Etc... hello@åä-ö.com
        
example@so.il.uk';
        
if (preg_match_all($re, $str, $matches)) {
        
  print_r($matches[0]);
        
}


        Output:



        Array
        
(
        
    [0] => some@example.com
        
    [1] => some@example.co.uk
        
    [2] => hello@åä-ö.com
        
    [3] => example@so.il.uk
        
)






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 22 '18 at 22:16









        Wiktor StribiżewWiktor Stribiżew

        325k16146226




        325k16146226
































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