PHP 将配对值添加到数组中，然后排序并打印

发布于 2024-10-09 23:20:42 字数 610 浏览 0 评论 0原文

假设我有一个文件的名称及其在两个变量中的完整路径，如何将它们添加到数组中，按文件名对数组进行排序（保持两个值配对，然后循环遍历数组并打印它？这是使用我不会列出整个代码，因为它非常复杂，所以这是我想要做的事情的简化版本：

<?php

$files = new RecursiveIteratorIterator( new RecursiveDirectoryIterator($pathToIterate));

foreach($files as $file){

$path=str_replace($_SERVER["DOCUMENT_ROOT"],'',$file->getPathname());
$file_name = basename($path,'.'.$info['extension']);

  // Need code to add $file_name and $path to array //

    };
} 


// Need code to sort array by $file_name //

// Need code to loop through array and print <a href="$path">$file_name</a> //


}
?>

原文

Say I have the name of a file and it's full path in two variables, how can I add them to an array, sort the array by the filename (keeping the two values paired, then loop through the array and print it? This is using a directory iterator. I won't list the whole code as it's quite convuluted, so heres a simplified version of what I'm trying to do:

<?php

$files = new RecursiveIteratorIterator( new RecursiveDirectoryIterator($pathToIterate));

foreach($files as $file){

$path=str_replace($_SERVER["DOCUMENT_ROOT"],'',$file->getPathname());
$file_name = basename($path,'.'.$info['extension']);

  // Need code to add $file_name and $path to array //

    };
} 


// Need code to sort array by $file_name //

// Need code to loop through array and print <a href="$path">$file_name</a> //


}
?>

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小嗲 2024-10-16 23:20:42

$output = array();

foreach ($files as $file) {
   $path = ... ;
   $file_name = ... ;
   $output[$file_name][] = $path;
}

ksort($output);

foreach ($output as $file_name => $path_names) {
   sort($path_names);  // if necessary
   foreach ($path_names as $path) {
// print stuff
   }
}

编辑：更新感谢难以捉摸的建议

$output = array();

foreach ($files as $file) {
   $path = ... ;
   $file_name = ... ;
   $output[$file_name][] = $path;
}

ksort($output);

foreach ($output as $file_name => $path_names) {
   sort($path_names);  // if necessary
   foreach ($path_names as $path) {
// print stuff
   }
}

EDIT: Updated thanks to elusive's suggestion

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固执像三岁 2024-10-16 23:20:42

我会将每一对维护在一个简单的类中。然后我会使用 usort()，它允许您对数组进行排序使用用户定义的比较函数。

我已经有一段时间没有编写任何 PHP 了，所以我可能会因为以下（未经测试的）示例代码而让自己感到尴尬，但您应该明白这个想法：

class Pair
{
    public $path;
    public $name;
}

function myComparator($p1, $p2)
{
    return strcmp($p1->name, $p2->name);
}

...

foreach ($files as $file)
{
    ...
    $p = new Pair();
    $p->path = $path;
    $p->name = $name;
    $pairs[] = $p;
}


usort($pairs, myComparator);

I would maintain each pair in a simple class. Then I would use usort(), which allows you to sort an array using a user-defined comparison function.

It's been a while since I've written any PHP, so I might be embarrassing myself with the following (untested) example code, but you should get the idea:

class Pair
{
    public $path;
    public $name;
}

function myComparator($p1, $p2)
{
    return strcmp($p1->name, $p2->name);
}

...

foreach ($files as $file)
{
    ...
    $p = new Pair();
    $p->path = $path;
    $p->name = $name;
    $pairs[] = $p;
}


usort($pairs, myComparator);

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