[SOLVED] Regex Help~

[xenophobia]

Alright, I want a searching regex statement to achieve this:

 

I want to search for an email address that is under the specified domain. Eg:

I want all the user under this domain: yahoo.

So:

aaa@yahoo.com will return true.

bbb@yahoo.com will return true.

ccc@yahoo.com will return true.

... so on....

while

aaa@hotmail.com will return false.

bbb@anydomain.com will return false.

ccc@mydomain.org will return false.

 

any idea? I am bad in REGEX. I need you guy's help.

[effigy]

<pre>
<?php
$data = <<<DATA
Alright, I want a searching regex statement to achieve this:

I want to search for an email address that is under the specified domain. Eg:
I want all the user under this domain: yahoo.
So:
aaa@yahoo.com will return true.
bbb@yahoo.com will return true.
ccc@yahoo.com will return true.
... so on....
while
aaa@hotmail.com will return false.
bbb@anydomain.com will return false.
ccc@mydomain.org will return false.

any idea? I am bad in REGEX. I need you guy's help.
DATA;

preg_match_all('/\S+@yahoo\.com/', $data, $matches);
print_r($matches);
?>
</pre>

[xenophobia]

preg_match_all('/\S+@yahoo\.com/', $data, $matches);

print_r($matches);

 

Alright, the regex work fine.

 

Now i got a small request. How if i want to match more than just yahoo? Example like i want hotmail to be return true also. meaning:

abc@yahoo.com -> return true

abc@hotmail.com -> return true also

 

maybe i will have more than one email domain. How can I do that?

[xenophobia]

Alright. After figuring, I got this:

 

/^\S+@(?:yahoo|hotmail)\.\S*$/Uis

 

whereby if user enter any domain with yahoo or hotmail, it will return true. Now what I want is, I want to negate it! Meaning, if user using yahoo or hotmail, i want it to return false. How to do it!?

 

Please help!!!

 

Thank in advanced.

[effigy]

/^\S+@(?!yahoo|hotmail)\S+\.\S+$/i

[xenophobia]

That work fine if user entered: abc@gahoo.com or efg@yaho.com

 

But if user enetered: abc@yahoos.com, it return false too! Meaning, it match! Suppose it is not.

 

Is it putting something like \b in between the `group`? But I tried, failed...

 

Please guide! Thanks a lot effigy~

[effigy]

Try this; it reinforces the domain by looking for a following period:

 

/^\S+@(?!(?:yahoo|hotmail)\.)\S+\.\S+$/i

 

[xenophobia]

Thanks! It work perfectly! You are a geniuses.

 

Thank you.