PHP 动态面包屑导航

Question

我从某人那里得到了这段代码，它运行得很好，我只想删除数组最后一个元素中的链接：

//get rid of empty parts
$crumbs = array_filter($crumbs);

$result = array();
$path = '';
foreach($crumbs as $crumb){
    $path .= '/' . $crumb;
    $name = ucfirst(str_replace(array(".php","_"),array(""," "), $crumb));
    $result[] = "<a href=\"$path\">$name</a>";

}

print implode(' > ', $result);

这将输出例如： 内容>>常见>文件

我只想删除最后一项的链接 - “文件”只是纯文本.. 我尝试自己计算数组项，然后如果数组项是最后一项，则以纯文本形式打印最后一项..但我仍然是菜鸟，我还没有设法获得正确的结果..

谢谢！

Answer 1

这应该有效：

$crumbs = array_filter($crumbs);

$result = array(); $path = '';
//might need to subtract one from the count...
$count = count($crumbs);
foreach($crumbs as $k=>$crumb){
     $path .= '/' . $crumb;
     $name = ucfirst(str_replace(array(".php","_"),array(""," "), $crumb));
     if($k != $count){
         $result[] = "<a href=\"$path\">$name</a>";
     } else {
         $result[] = $name;
     }
}

print implode(' > ', $result);

Answer 2

您可以简单地调整现有代码以使用“正常”循环（而不是 foreach 迭代器）来实现此目的。

例如：

//get rid of empty parts
$crumbs = array_filter($crumbs);

$result = array();
$path = '';
$crumbCount = count($crumbs);
for($crumbLoop=0; $crumbLoop<$crumbCount; $crumbLoop++) {
    $path .= '/' . $crumbs[$crumbLoop];
    $name = ucfirst(str_replace(array(".php","_"),array(""," "), $crumbs[$crumbLoop]));
    $result[] = ($crumbLoop != $crumbCount -1) ? "<a href=\"$path\">$name</a>" : $name;
}

print implode(' > ', $result);

注意：我目前无法访问 PHP，因此上面的内容可能并非没有错误，但您应该明白了。

Answer 3

for($i=0;$i< sizeof($crumbs);$i++) {
   $path .= '/' . $crumbs[$i];
   $name = ucfirst(str_replace(array(".php","_"),array(""," "), $crumbs[$i]));

   if ($i != sizeof($crumbs)-1) {
      $result[] = "<a href=\"$path\">$name</a>";
   }else {
      $result[] = $name;
   }
}