php - 如何将字符串截断为 PHP 中的前 20 个单词？

Question

如何在 PHP 中截断 20 个单词后的字符串？

Answer 1

function limit_text($text, $limit) {
    if (str_word_count($text, 0) > $limit) {
        $words = str_word_count($text, 2);
        $pos   = array_keys($words);
        $text  = substr($text, 0, $pos[$limit]) . '...';
    }
    return $text;
}

echo limit_text('Hello here is a long sentence that will be truncated by the', 5);

输出:

Hello here is a long ...