如何在php中检索文本作为可点击链接？

Question

这是我的代码，用于查看用户的帖子，但将链接显示为普通文本。如何检测网址并将其转换为可点击的链接？随附参考：

function get_posts()
{
    global $con;
    $get_posts = "SELECT * FROM posts";
    $run_posts = mysqli_query($con, $get_posts);
    while ($row_posts = mysqli_fetch_array($run_posts)) {
        $post_id = $row_posts['post_id'];
        $user_id = $row_posts['user_id'];

        $content   = $row_posts['post_content'];
        $post_date = $row_posts['post_date'];

        echo "<div class='posts'>
        <p>$post_date</p>
        <p>$content</p>
        <a href='single.php?post_id=$post_id'Style='float:right;'>
        <button>See Replies or Reply to is</button></a>
        </div><br/>";
    }
}

Answer 1

请检查以下代码，因为您没有正确准备html。您已经在定位标记中使用了按钮。

function get_posts(){
    global $con;
    $get_posts="SELECT * FROM posts";
    $run_posts=mysqli_query($con,$get_posts);
    while($row_posts=mysqli_fetch_array($run_posts)){
        $post_id=$row_posts['post_id']; 
        $user_id=$row_posts['user_id']; 

        $content=$row_posts['post_content'];    
        $post_date=$row_posts['post_date']; 

        echo '<div class="posts">
            <p>'.$post_date.'</p>
            <p>'.$content.'</p>
            <a href="single.php?post_id='.$post_id.'" style="float:right;">
        See Replies or Reply to is</a>     
        </div><br/>';
    }
}

Answer 2

此解决方案将捕获所有http / https / www并转换为可点击的链接。

$url = '~(?:(https?)://([^\s<]+)|(www\.[^\s<]+?\.[^\s<]+))(?<![\.,:])~i'; 
$content = preg_replace($url, '<a href="$0" target="_blank" title="$0">$0</a>', $content);

请参阅Convert plain text URLs into HTML hyperlinks in PHP。