Limiting Post Length

Depending on how exactly do you want to limit the length, the following functions would work, from the easiest to the most complex

Limit by pure character length, so you may end up with partial words
https://us2.php.net/manual/en/function.substr.php

Limit by words, splitting on space. But this would treat words separated by spaceless punctuation as one.
https://us2.php.net/manual/en/function.explode.php

Limit by words, splitting on non-words, it can mistake certain valid characters as non-word but you can specify additional “word” chars to overcome it

https://us2.php.net/manual/en/function.str-word-count.php

Split using regular expression, not likely needed since in most cases the previous function would do
https://us2.php.net/manual/en/function.preg-split.php

In all cases, you end up with an array of words which you just have to delete excess before imploding it into a string again.

Thank you sharing