How to Limit Multiple Characters with PHP [duplicate]

I want to limit the number of characters displayed from the database to 150 characters, and that's the code I have..

$result = mysqli_query($connect, $query);while($row =                 
mysqli_fetch_array($result))
{
echo ''.$row["description_of_title"].'';}

source https://stackoverflow.com/questions/71210966/how-to-limit-multiple-characters-with-php