简单的动态面包屑

Question

我觉得这个脚本对这里的任何菜鸟都很感兴趣:)包括我:)

我想创建的是一个小代码,我可以在任何文件中使用,并将生成这样的面包屑:

如果文件名为" website.com/templates/index.php ",则面包屑应显示:

Website.com > Templates

 ^^链接^^纯文本

如果文件名为" website.com/templates/template_some_name.php ",则面包屑应显示:

Website.com > Templates > Template Some Name

 ^^链接^^链接^^纯文本

Answer 1

对于一个简单的面包屑来说这可能有点过头了,但值得一试.我记得很久以前我刚开始这个问题,但我从未真正解决过这个问题.也就是说,直到我决定现在写这个.:)

我记录了最好的内联,最底层是3个可能的用例.请享用!(随时问你可能有任何问题)

<?php

// This function will take $_SERVER['REQUEST_URI'] and build a breadcrumb based on the user's current path
function breadcrumbs($separator = ' &raquo; ', $home = 'Home') {
    // This gets the REQUEST_URI (/path/to/file.php), splits the string (using '/') into an array, and then filters out any empty values
    $path = array_filter(explode('/', parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH)));

    // This will build our "base URL" ... Also accounts for HTTPS :)
    $base = ($_SERVER['HTTPS'] ? 'https' : 'http') . '://' . $_SERVER['HTTP_HOST'] . '/';

    // Initialize a temporary array with our breadcrumbs. (starting with our home page, which I'm assuming will be the base URL)
    $breadcrumbs = Array("<a href=\"$base\">$home</a>");

    // Find out the index for the last value in our path array
    $last = end(array_keys($path));

    // Build the rest of the breadcrumbs
    foreach ($path AS $x => $crumb) {
        // Our "title" is the text that will be displayed (strip out .php and turn '_' into a space)
        $title = ucwords(str_replace(Array('.php', '_'), Array('', ' '), $crumb));

        // If we are not on the last index, then display an <a> tag
        if ($x != $last)
            $breadcrumbs[] = "<a href=\"$base$crumb\">$title</a>";
        // Otherwise, just display the title (minus)
        else
            $breadcrumbs[] = $title;
    }

    // Build our temporary array (pieces of bread) into one big string :)
    return implode($separator, $breadcrumbs);
}

?>

<p><?= breadcrumbs() ?></p>
<p><?= breadcrumbs(' > ') ?></p>
<p><?= breadcrumbs(' ^^ ', 'Index') ?></p>

Answer 2

嗯,从你给它的例子看起来像"$ _SERVER ['REQUEST_URI']"和explode()函数可以帮助你.您可以使用explode将域名后面的URL拆分为数组,并在每个正斜杠上将其分开.

作为一个非常基本的例子,可以实现这样的事情:

$crumbs = explode("/",$_SERVER["REQUEST_URI"]);
foreach($crumbs as $crumb){
    echo ucfirst(str_replace(array(".php","_"),array(""," "),$crumb) . ' ');
}

Answer 3

还使用RDFa创建了一个小脚本(您也可以使用微数据或其他格式)在谷歌上查看 此脚本还会记住您的站点结构.

function breadcrumbs($text = 'You are here: ', $sep = ' » ', $home = 'Home') {
//Use RDFa breadcrumb, can also be used for microformats etc.
$bc     =   '<div xmlns:v="http://rdf.data-vocabulary.org/#" id="crums">'.$text;
//Get the website:
$site   =   'http://'.$_SERVER['HTTP_HOST'];
//Get all vars en skip the empty ones
$crumbs =   array_filter( explode("/",$_SERVER["REQUEST_URI"]) );
//Create the home breadcrumb
$bc    .=   '<span typeof="v:Breadcrumb"><a href="'.$site.'" rel="v:url" property="v:title">'.$home.'</a>'.$sep.'</span>'; 
//Count all not empty breadcrumbs
$nm     =   count($crumbs);
$i      =   1;
//Loop the crumbs
foreach($crumbs as $crumb){
    //Make the link look nice
    $link    =  ucfirst( str_replace( array(".php","-","_"), array(""," "," ") ,$crumb) );
    //Loose the last seperator
    $sep     =  $i==$nm?'':$sep;
    //Add crumbs to the root
    $site   .=  '/'.$crumb;
    //Make the next crumb
    $bc     .=  '<span typeof="v:Breadcrumb"><a href="'.$site.'" rel="v:url" property="v:title">'.$link.'</a>'.$sep.'</span>';
    $i++;
}
$bc .=  '</div>';
//Return the result
return $bc;}