How to extract all text in front of the '@' character in a string

问题

how to remove a string starting from '@'?

for example admin@admin.com, i want to remove the string starting from @ so it becomes 'admin' only. just like in twitter..i read about str replace and trim but i think theres other way to do it?

$email = 'admin@admin.com';

echo substr_replace($email, ?, ?) ; this i cant do

回答1:

You don't need to replace the remainder, you can just cut out until the searched character. In this case it's very easy with strtok:

 $name = strtok($email, "@");

回答2:

What about:

substr($email, 0, strpos($email, '@'));

回答3:

strtok() is the best, but as an alternative...

$name = strstr($email, '@', TRUE);

回答4:

Try this function: strstr:

$start = strstr($email, '@', true);

回答5:

$email = 'admin@admin.com';
list($Lastpart,$Firstpart) = explode("@",$email); 

echo $Firstpart; //before @ sign
echo $Lastpart;  //after @ sign

回答6:

$email = explode("@", $email);

$name = $email[0];

回答7:

$email = 'admin@admin.com';
$aEmail= explode('@',$email);
echo $aEmail[0];

来源：https://stackoverflow.com/questions/6273679/how-to-extract-all-text-in-front-of-the-character-in-a-string