Php 当解析查询字符串时，面包屑菜单复制链接

我已经创建了一个面包屑菜单，它获取页面URL，

分解每个尾部斜杠（域后）后的文本并打印出来

如果没有向URL添加任何查询字符串，则此操作可以正常工作，但是，一旦添加了查询，它将复制链接：

工作示例：

<?php
    $url = "/parent/child";
    // 1. Get URL
    $crumbs = explode("/", trim($url, '/'));
    // 2. Strip extras
    $build = '';
    // 3. Define int so last item is not a link
    $lastKey = count($crumbs) - 1;
    // 4. Execute loop
    foreach($crumbs as $key => $crumb){
        $build .= '/'.$crumb;
        // format text 
        $crumb = ucfirst(str_replace(array(".php","_"),array(""," "),$crumb) . ' ');
        $crumb = preg_replace('/-/', ' ', $crumb); // remove dashes
        $crumb = trim($crumb); // remove whitespace from before and after string

        $pagename = "child";  

        echo $key < $lastKey
            ? "$crumb /" : $pagename;
    }
?>

$crumbs = explode("/", trim($_SERVER["REQUEST_URI"], '/'));
$crumbs = preg_replace('/\?.*/', '', $crumbs);

<?php

    // 1. Get current URL
    $crumbs = trim($_SERVER["REQUEST_URI"]);
    $crumbs = preg_replace('/\?.*/', '', $crumbs);
    $crumbs = explode("/", $crumbs);
    array_filter($crumbs);


    $count = count($crumbs);
    $build = '';

    // 3. Define int so last item is not a link
    $lastKey = count($crumbs) - 1;

    // 4. Execute loop
    foreach($crumbs as $key => $crumb){
        $build .= $crumb;

        // format text 
        $crumb = ucfirst(str_replace(array(".php","_"),array(""," "),$crumb) . ' ');
        $crumb = preg_replace('/-/', ' ', $crumb); // remove dashes
        $crumb = trim($crumb); // remove whitespace from before and after string

        $pagename = get_query_var('pagename');  
        $pagename = the_title('', '', false); // print page name as is in WP
        $pagename = preg_replace('/-/', ' ', $pagename); // remove dashes
        $pagename = trim($pagename);

        echo $key < $lastKey
            ? "<a class='crumbLink' href=".$build.">".$crumb."</a>
               <span class='slash'>/</span>"
            : $pagename;

    }


?>

这将输出：父/子/父
预期输出：**父/子**

我知道我已经设置了
$pagename=“parent”
，但我希望它忽略查询字符串

我尝试了以下方法：

<?php
    $url = "/parent/child";
    // 1. Get URL
    $crumbs = explode("/", trim($url, '/'));
    // 2. Strip extras
    $build = '';
    // 3. Define int so last item is not a link
    $lastKey = count($crumbs) - 1;
    // 4. Execute loop
    foreach($crumbs as $key => $crumb){
        $build .= '/'.$crumb;
        // format text 
        $crumb = ucfirst(str_replace(array(".php","_"),array(""," "),$crumb) . ' ');
        $crumb = preg_replace('/-/', ' ', $crumb); // remove dashes
        $crumb = trim($crumb); // remove whitespace from before and after string

        $pagename = "child";  

        echo $key < $lastKey
            ? "$crumb /" : $pagename;
    }
?>

$crumbs = explode("/", trim($_SERVER["REQUEST_URI"], '/'));
$crumbs = preg_replace('/\?.*/', '', $crumbs);

<?php

    // 1. Get current URL
    $crumbs = trim($_SERVER["REQUEST_URI"]);
    $crumbs = preg_replace('/\?.*/', '', $crumbs);
    $crumbs = explode("/", $crumbs);
    array_filter($crumbs);


    $count = count($crumbs);
    $build = '';

    // 3. Define int so last item is not a link
    $lastKey = count($crumbs) - 1;

    // 4. Execute loop
    foreach($crumbs as $key => $crumb){
        $build .= $crumb;

        // format text 
        $crumb = ucfirst(str_replace(array(".php","_"),array(""," "),$crumb) . ' ');
        $crumb = preg_replace('/-/', ' ', $crumb); // remove dashes
        $crumb = trim($crumb); // remove whitespace from before and after string

        $pagename = get_query_var('pagename');  
        $pagename = the_title('', '', false); // print page name as is in WP
        $pagename = preg_replace('/-/', ' ', $pagename); // remove dashes
        $pagename = trim($pagename);

        echo $key < $lastKey
            ? "<a class='crumbLink' href=".$build.">".$crumb."</a>
               <span class='slash'>/</span>"
            : $pagename;

    }


?>

结果仍然相同

最新代码：

<?php
    $url = "/parent/child";
    // 1. Get URL
    $crumbs = explode("/", trim($url, '/'));
    // 2. Strip extras
    $build = '';
    // 3. Define int so last item is not a link
    $lastKey = count($crumbs) - 1;
    // 4. Execute loop
    foreach($crumbs as $key => $crumb){
        $build .= '/'.$crumb;
        // format text 
        $crumb = ucfirst(str_replace(array(".php","_"),array(""," "),$crumb) . ' ');
        $crumb = preg_replace('/-/', ' ', $crumb); // remove dashes
        $crumb = trim($crumb); // remove whitespace from before and after string

        $pagename = "child";  

        echo $key < $lastKey
            ? "$crumb /" : $pagename;
    }
?>

$crumbs = explode("/", trim($_SERVER["REQUEST_URI"], '/'));
$crumbs = preg_replace('/\?.*/', '', $crumbs);

<?php

    // 1. Get current URL
    $crumbs = trim($_SERVER["REQUEST_URI"]);
    $crumbs = preg_replace('/\?.*/', '', $crumbs);
    $crumbs = explode("/", $crumbs);
    array_filter($crumbs);


    $count = count($crumbs);
    $build = '';

    // 3. Define int so last item is not a link
    $lastKey = count($crumbs) - 1;

    // 4. Execute loop
    foreach($crumbs as $key => $crumb){
        $build .= $crumb;

        // format text 
        $crumb = ucfirst(str_replace(array(".php","_"),array(""," "),$crumb) . ' ');
        $crumb = preg_replace('/-/', ' ', $crumb); // remove dashes
        $crumb = trim($crumb); // remove whitespace from before and after string

        $pagename = get_query_var('pagename');  
        $pagename = the_title('', '', false); // print page name as is in WP
        $pagename = preg_replace('/-/', ' ', $pagename); // remove dashes
        $pagename = trim($pagename);

        echo $key < $lastKey
            ? "<a class='crumbLink' href=".$build.">".$crumb."</a>
               <span class='slash'>/</span>"
            : $pagename;

    }


?>

我认为问题在于：

echo$key<$lastKey？“$crump/”：$pagename

在步骤3中：

// 3. Define int so last item is not a link
$lastKey = count($crumbs) - 1;

如果您有3个项目，$lastKey将是2，因为您计算3个项目并减去1

在循环的后面，最后一项将在$key=2中，因此：

$key = 2 < $lastKey = 2

$key=2<$lastKey=2
我们从$url中删除查询字符串怎么样

<?php
    $url ="/parent/child/";
    $url_arr = parse_url($url);
    if(isset($url_arr['query'])){
    $query = $url_arr['query'];
    $url = str_replace(array($query,'?'), '', $url);
    }
    // 1. Get URL
    $crumbs = explode("/", trim($url, '/'));
    // 2. Strip extras
    $build = '';
    // 3. Define int so last item is not a link
    $lastKey = count($crumbs) - 1;
    // 4. Execute loop
    foreach($crumbs as $key => $crumb){
        $build .= '/'.$crumb;
        // format text
        $crumb = ucfirst(str_replace(array(".php","_"),array(""," "),$crumb) . ' ');
        $crumb = preg_replace('/-/', ' ', $crumb); // remove dashes
        $crumb = trim($crumb); // remove whitespace from before and after string

        $pagename = "parent";

        echo $key < $lastKey
            ? "$crumb   /" : $pagename;
    }
?>


试试看

我认为您应该坚持您的第一个“工作”解决方案，但使用
parse\u url（$url，PHP\u url\u PATH）
而不是直接使用
$url
：

<?php
    $url = parse_url("/parent/child?foo=bla&bar=bla", PHP_URL_PATH));
    // 1. Get URL
    $crumbs = explode("/", trim($url, '/'));
    // 2. Strip extras
    $build = '';
    // 3. Define int so last item is not a link
    $lastKey = count($crumbs) - 1;
    // 4. Execute loop
    foreach($crumbs as $key => $crumb){
        $build .= '/'.$crumb;
        // format text 
        $crumb = ucfirst(str_replace(array(".php","_"),array(""," "),$crumb) . ' ');
        $crumb = preg_replace('/-/', ' ', $crumb); // remove dashes
        $crumb = trim($crumb); // remove whitespace from before and after string

        $pagename = "child";  

        echo $key < $lastKey
            ? "$crumb /" : $pagename;
    }
?>

嗯，我已经做了一些测试，我也这么认为。有没有办法让它充满活力？也就是说，我不希望当前页面（面包屑中的最后一项）成为链接，并希望它忽略任何查询字符串。我已经尝试使用regex从URL
$crumbs=preg\u replace（“/\？*/”，“$crumbs”）中删除查询
但是，我仍然看到相同的结果？@Freddy如果您不需要查询字符串，可以使用带符号“？”的explode，并使用第一个数组作为$crumbs。如果我理解正确，我想要的是1。获取URL，2。分解该URL（在每个
/
之后）以获得所有的slug 3。使所有slug链接到这些页面，但最后一个slug除外（这将是用户当前所在的页面）。问题当然是，当一个查询字符串被传递时，它会复制我尝试的最后一个slug（我不想要这个slug）
$url=$\u SERVER[“REQUEST\u URI”]$url\u arr=parse\u url（$url）$query=$url_arr['query']
但是获取
未定义索引：query
错误？我已经编辑了帖子错误出现在没有查询字符串的URL上，但是现在它可以正常工作了。