我的文本存储在php变量$ text中。此文本可以是100或1000或10000个单词。正如目前实现的那样,我的页面基于文本扩展,但如果文本太长,页面看起来很难看。
我想获取文本的长度并将字符数限制为500,如果文本超出此限制,我想提供一个链接,说“阅读更多”。如果单击“阅读更多”链接,它将显示包含$ text中所有文本的弹出窗口。
答案 0 :(得分:134)
这就是我使用的:
// strip tags to avoid breaking any html
$string = strip_tags($string);
if (strlen($string) > 500) {
// truncate string
$stringCut = substr($string, 0, 500);
$endPoint = strrpos($stringCut, ' ');
//if the string doesn't contain any space then it will cut without word basis.
$string = $endPoint? substr($stringCut, 0, $endPoint) : substr($stringCut, 0);
$string .= '... <a href="/this/story">Read More</a>';
}
echo $string;
您可以进一步调整它,但它可以在生产中完成工作。
答案 1 :(得分:9)
$num_words = 101;
$words = array();
$words = explode(" ", $original_string, $num_words);
$shown_string = "";
if(count($words) == 101){
$words[100] = " ... ";
}
$shown_string = implode(" ", $words);
答案 2 :(得分:3)
我结合了两个不同的答案:
完整的HTML缺失标记
$string = strip_tags($strHTML);
$yourText = $strHTML;
if (strlen($string) > 350) {
$stringCut = substr($post->body, 0, 350);
$doc = new DOMDocument();
$doc->loadHTML($stringCut);
$yourText = $doc->saveHTML();
}
$yourText."...<a href=''>View More</a>"
答案 3 :(得分:2)
简单地用它来剥离文本:
echo strlen($string) >= 500 ?
substr($string, 0, 490) . ' <a href="link/to/the/entire/text.htm">[Read more]</a>' :
$string;
编辑,最后:
function split_words($string, $nb_caracs, $separator){
$string = strip_tags(html_entity_decode($string));
if( strlen($string) <= $nb_caracs ){
$final_string = $string;
} else {
$final_string = "";
$words = explode(" ", $string);
foreach( $words as $value ){
if( strlen($final_string . " " . $value) < $nb_caracs ){
if( !empty($final_string) ) $final_string .= " ";
$final_string .= $value;
} else {
break;
}
}
$final_string .= $separator;
}
return $final_string;
}
这里的分隔符是href链接,可以阅读更多内容;)
答案 4 :(得分:2)
<?php $string = "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.";
if (strlen($string) > 25) {
$trimstring = substr($string, 0, 25). ' <a href="#">readmore...</a>';
} else {
$trimstring = $string;
}
echo $trimstring;
//Output : Lorem Ipsum is simply dum [readmore...][1]
?>
答案 5 :(得分:1)
此方法不会截断中间的单词。
list($output)=explode("\n",wordwrap(strip_tags($str),500),1);
echo $output. ' ... <a href="#">Read more</a>';
答案 6 :(得分:1)
限制文字中的字词:
function limitTextWords($content = false, $limit = false, $stripTags = false, $ellipsis = false)
{
if ($content && $limit) {
$content = ($stripTags ? strip_tags($content) : $content);
$content = explode(' ', $content, $limit+1);
array_pop($content);
if ($ellipsis) {
array_push($content, '...');
}
$content = implode(' ', $content);
}
return $content;
}
限制文字中的字符:
function limitTextChars($content = false, $limit = false, $stripTags = false, $ellipsis = false)
{
if ($content && $limit) {
$content = ($stripTags ? strip_tags($content) : $content);
$ellipsis = ($ellipsis ? "..." : $ellipsis);
$content = mb_strimwidth($content, 0, $limit, $ellipsis);
}
return $content;
}
使用:
$text = "It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout.";
echo limitTextWords($text, 5, true, true);
echo limitTextChars($text, 5, true, true);
答案 7 :(得分:1)
有一个合适的PHP函数:substr_replace($text, $replacement, $start).
对于您的情况,因为您已经知道文本长度的所有可能性(100、1000或10000个单词),所以可以像下面这样简单地使用该PHP函数:
echo substr_replace($your_text, "...", 20);
PHP会自动返回仅包含20个字符的文本,其中包含...
。
答案 8 :(得分:0)
基本上,您需要整合字词限制器(例如something like this)并使用shadowbox之类的内容。您的阅读更多链接应链接到显示整篇文章的PHP脚本。只需在这些链接上设置Shadowbox即可。 (请参阅他们网站上的说明。很简单。)
答案 9 :(得分:0)
另一种方法:在主题的function.php文件中插入以下内容。
remove_filter('get_the_excerpt', 'wp_trim_excerpt');
add_filter('get_the_excerpt', 'custom_trim_excerpt');
function custom_trim_excerpt($text) { // Fakes an excerpt if needed
global $post;
if ( '' == $text ) {
$text = get_the_content('');
$text = apply_filters('the_content', $text);
$text = str_replace(']]>', ']]>', $text);
$text = strip_tags($text);
$excerpt_length = x;
$words = explode(' ', $text, $excerpt_length + 1);
if (count($words) > $excerpt_length) {
array_pop($words);
array_push($words, '...');
$text = implode(' ', $words);
}
}
return $text;
}
你可以使用它。
答案 10 :(得分:0)
<?php
$images_path = 'uploads/adsimages/';
$ads = mysql_query("select * from tbl_postads ORDER BY ads_id DESC limit 0,5 ");
if(mysql_num_rows($ads)>0)
{
while($ad = mysql_fetch_array($ads))
{?>
<div style="float:left; width:100%; height:100px;">
<div style="float:left; width:40%; height:100px;">
<li><img src="<?php echo $images_path.$ad['ads_image']; ?>" width="100px" height="50px" alt="" /></li>
</div>
<div style="float:left; width:60%; height:100px;">
<li style="margin-bottom:4%;"><?php echo substr($ad['ads_msg'],0,50);?><br/> <a href="index.php?page=listing&ads_id=<?php echo $_GET['ads_id'];?>">read more..</a></li>
</div>
</div>
<?php }}?>
答案 11 :(得分:0)
我想这将帮助您解决问题,请在给定的功能下进行检查:将文本修剪为空格,然后根据需要添加省略号
@param字符串$输入要修剪的文本
@返回字符串
function trim_text($input, $length, $ellipses = true, $strip_html = true) {
//strip tags, if desired
if ($strip_html) {
$input = strip_tags($input);
}//no need to trim, already shorter than trim length
if (strlen($input) <= $length) {
return $input;
}
//find last space within length
$last_space = strrpos(substr($input, 0, $length), ' ');
$trimmed_text = substr($input, 0, $last_space);
//add ellipses (...)
if ($ellipses) {
$trimmed_text .= '...';
}
return $trimmed_text;}
答案 12 :(得分:0)
这对我有用。
// strip tags to avoid breaking any html
$string = strip_tags($string);
if (strlen($string) > 500) {
// truncate string
$stringCut = substr($string, 0, 500);
$endPoint = strrpos($stringCut, ' ');
//if the string doesn't contain any space then it will cut without word basis.
$string = $endPoint? substr($stringCut, 0, $endPoint) : substr($stringCut, 0);
$string .= '... <a href="/this/story">Read More</a>';
}
echo $string;
感谢@webbiedave