php - 限制字数的功能，然后显示剩余文本

Question

我有一个带有阅读更多按钮的 div。阅读更多按钮会展开文本，展开的文本位于其下方的第二个 div 中。完全卡住了。请帮忙。代码如下:

<?PHP

function limit_words($string, $word_limit){
    $words = explode(" ",$string);
    return implode(" ",array_splice($words,0,$word_limit));
}

$text = "Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Donec quam felis, ultricies nec, pellentesque eu, pretium quis, sem. Nulla consequat massa quis enim. Donec pede justo, fringilla vel, aliquet nec, vulputate eget, arcu. In enim justo, rhoncus ut, imperdiet a, venenatis vitae, justo. Nullam dictum felis eu pede mollis pretium. Integer tincidunt. Cras dapibus. Vivamus elementum semper nisi. Aenean vulputate eleifend tellus.";

?>

<div class="slidewrap">
    <img src="images/slides/image.jpg" alt="Image Title" />
    <h3>Title</h3>
    <p><?PHP echo(limit_words($text,50)); ?></p>
    <p><a href="#" class="readmore"><img src="images/icons/readmore.png" alt="" /></a></p>
    <div class="readmorexpand">
        <p><?PHP echo($leftovertext); ?></p>
    </div>
</div>

Answer 1

试试这个:

<?php
function limit_words($string, $word_limit){
    $words = explode(" ",$string);
    return implode(" ",array_splice($words,0,$word_limit));
}

$text = "Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Donec quam felis, ultricies nec, pellentesque eu, pretium quis, sem. Nulla consequat massa quis enim. Donec pede justo, fringilla vel, aliquet nec, vulputate eget, arcu. In enim justo, rhoncus ut, imperdiet a, venenatis vitae, justo. Nullam dictum felis eu pede mollis pretium. Integer tincidunt. Cras dapibus. Vivamus elementum semper nisi. Aenean vulputate eleifend tellus.";

$start = limit_words($text,50);
$end = str_replace($start, '', $text);
?>

<div class="slidewrap">
    <img src="images/slides/image.jpg" alt="Image Title" />
    <h3>Title</h3>
    <p><?php echo $start; ?></p>
    <p><a href="#" onclick="document.getElementById('readmorexpand').style.display = '';" class="readmore"><img src="images/icons/readmore.png" alt="" /></a></p>
    <div class="readmorexpand" id="readmorexpand" style="display:none">
        <p><?php echo $end; ?></p>
    </div>
</div>