如何从句子中获取最后n个单词？ [重复]

Question

This question already has an answer here:

• How to obtain the last word of a string 8 answers

I would like to get last n (for e.g. last 5) words of a sentence. How can I get it ? The following code gives the desired result but for this requires to count the remaining words in the sentence.

<?php
$string = "This is an example to get last five words from this sentence";
$pieces = explode(" ", $string);
echo $first_part = implode(" ", array_splice($pieces, 0,7));
echo "<hr/>";
echo $other_part = implode(" ", array_splice($pieces, 0));
?>

I was hoping if there is a direct way of do this like to get first n words from a sentence.

NOTE: This is not the duplicate of How to obtain the last word of a string. I want last n words, not last nth word.

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Answer 1

For last 5

$string = "This is an example to get last five words from this sentence";
$pieces = explode(" ", $string);
echo $first_part = implode(" ", array_splice($pieces, -5));