我正在我的php网站（不是Wordpress网站）上的主索引上工作，我显示了两个最新的帖子。事情是在描述上，它显示了我发现自己需要展示的整篇文章的摘录，可能35个字的限制。
<?=$line["m_description"]?>
<?
$qresult3 = mysql_query("SELECT * FROM t_users WHERE u_id=".$line["m_userid"]." LIMIT 1");
if (mysql_num_rows($qresult3)<1) { ?>
<?php
// just the excerpt
function first_n_words($text, $number_of_words) {
// Where excerpts are concerned, HTML tends to behave
// like the proverbial ogre in the china shop, so best to strip that
$text = strip_tags($text);
// 'w['w'-]* allows for any word character (a-zA-Z0-9_) and also contractions
// and hyphenated words like 'range-finder' or "it's"
// the /s flags means that . matches 'n, so this can match multiple lines
$text = preg_replace("/^'W*(('w['w'-]*'b'W*){1,$number_of_words}).*/ms", '''1', $text);
// strip out newline characters from our excerpt
return str_replace("'n", "", $text);
}
// excerpt plus link if shortened
function truncate_to_n_words($text, $number_of_words, $url, $readmore = 'read more') {
$text = strip_tags($text);
$excerpt = first_n_words($text, $number_of_words);
// we can't just look at the length or try == because we strip carriage returns
if( str_word_count($text) !== str_word_count($excerpt) ) {
$excerpt .= '... <a href="'.$url.'">'.$readmore.'</a>';
}
return $excerpt;
}
$src = <<<EOF
<b>My cool story</b>
<p>Here it is. It's really cool. I like it. I like lots of stuff.</p>
<p>I also like to read and write and carry on forever</p>
EOF;
echo first_n_words($src, 10);
echo "'n'n-----------------------------'n'n";
echo truncate_to_n_words($src, 10, 'http://www.google.com');
编辑：添加了功能示例，并说明了文本中的标点符号和数字
我有一个函数，尽管其他人可能会说它不好，因为我也很擅长PHP（提示欢迎大家），但这会给你带来你想要的东西，如果有人有建议，它可能需要更好的编码。
function Short($text, $length, $url, $more){
$short = mb_substr($text, 0, $length);
if($short != $text) {
$lastspace = strrpos($short, ' ');
$short = substr($short , 0, $lastspace);
if(!$more){
$more = "Read Full Post";
} // end if more is blank
$short .= "...[<a href='$url'>$more</a>]";
} // end if content != short
$short = str_replace("’","'", $short);
$short = stripslashes($short);
$short = nl2br($short);
} // end short function
使用：
假设你的文章内容是可变的$content
function($content, "35", "http://domain.com/article_post", "Read Full Story");
echo $short;
类似地，您可以调整函数以从中删除$url和$more，只需使用。。。最后。