仅为移动设备显示the_content（）的前X个单词

Question

How would I go about showing just the first X words of the_content() but only for mobile devices?

Answer 1

You can use this;

<?php
function getFirstXWord($string, $a) {
    $temp = explode(" ", $string);
    return implode(" ", array_slice($temp, 0, $a, true));   
}

echo getFirstXWord("this is a content but do not trust this content", 5);
?>

Here is a working demo: codepad

For mobile detection part, you can use php-mobile-detect class. There is examples in project, I did not stated it here