PHP substr() for number of words



I have a string that I want to trim or get a subset such that the words are not truncated. But complete words are taken out from the string.

This means for example, I have a string:

<?php
$str = "this is a nice nice work";
?>

Now, if I use a function substrnew($str, 4), I should get 4 words as the output (which means output is "this is a nice"). How do we do that in php?

1 year 51 weeks ago   Tags:


We can use the following php code to trim to the number of words. Basically, this is substr() kind of function, but for words.

<?php
function substrwords($str, $n) {
    $len = strlen($str);
    if ($len > $n) {
        preg_match('/(.{' . $n . '}.*?)\b/', $str, $matches);
        return rtrim($matches[1]) ;
    }
    else {
        return $str;
    }
}


?>