Detecting emails in a text

Question

I\'m trying to create a function that translates every occurrence of a plain text email address in a given string into it\'s htmlized version.

Let\'s say I h

Answer 1

The code below should work fine, but it regex is easier to go with.

$str = "Send me an email to bob@example.com.";

   function htmlizestring($a){

        if(substr_count($a,"@") != 1){
            return false;
        }else{
            $b4 = stristr($a,"@",true);
            $b4pos = strripos($b4," ")+1;
            $b4 = trim(substr($b4,$b4pos));
            $after = stristr($a,"@");           
            if(substr_count($after, " ") == 0){
                $after=rtrim($after," .,");
            }else{
                $after=trim(stristr($after," ",true));
            }
            $email = $b4.$after;
            echo $email;
            if(filter_var($email, FILTER_VALIDATE_EMAIL)){
                echo "Send me an email at: ".$email."";
            }else{
                return false;
            }
        }   

    }

    htmlizestring($str);

I happen to use stristr() with the third parameter TRUE, which only works on php 5.3+