Limiting to certain amout of chars

[Pezmc]

Using the substr function I have limited a string to a certain amount of chars.

echo substr($row["refer"], 0, 50);

However I have noticed quite a few websites add a ... if it shortens the string, how can this be achieved?

[NogDog]

echo (strlen($row['refer']) > 50) ? substr($row['refer'], 0, 50).'...' : $row['refer'] ;

[Pezmc]

Thanks for you help 🙂
I wrote a code "almost" like this but it didn't work.
Thanks again