问题描述
我为每一行得到了一个这种模式的文本文件:
I got a text file in this pattern for each line:
Username : Score
我正在尝试用它创建一个记分牌.
I'm trying to create a scoreboard out of this.
这是我的尝试:
<table width="200" border="1">
<tr>
<td width="85">Nom</td>
<td width="99">Score</td>
</tr>
<tr>
<td height="119"></td>
<td></td>
</tr>
</table>问题是如何将每个 username 和 score 复制到表中(没有 : 字符)?
The question is how can I copy each username and score to the table (without the : character) ?
我当前的 php 代码:
My current php code:
<?php
$file = file_get_contents('facile.txt', true);
$arr = explode("/", $file, 2);
$first = $arr[0];
?>
这只会给我第一个用户名，但我想获取每一行的所有用户名.
This will give me only the first username, but I want to get all the usernames from every line.
推荐答案
这应该适合你:
这里我首先使用 file() 其中每一行都是一个数组元素.在那里我忽略每行末尾的空行和换行符.
Here I first get all lines into an array with file() where every line is one array element. There I ignore empty lines and new line characters at the end of each line.
在此之后，我使用 array_map()并使用explode()，然后我将其作为数组返回以创建一个多维数组，例如:
After this I go through each line with array_map() and extract the username + score with explode(), which I then return as array to create a multidimensional array, e.g:
Array
(
[0] => Array
(
[username] => a
[score] => 5
)
//...
我用 usort()(要将顺序从 ASC 更改为 DESC，您只需将 > 更改为 <> 在 usort()) 之后，我简单地遍历数据并将其打印在表格中.
The I sort the array by the score with usort() (To change the order from ASC to DESC you can just change > to < in usort()) and after this I simply loop through the data and print it in the table.
<?php
$lines = file("scores.txt", FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
$data = array_map(function($v){
list($username, $score) = explode(":", $v);
return ["username" => $username, "score" => $score];
}, $lines);
usort($data, function($a, $b){
if($a["score"] == $b["score"])
return 0;
return $a["score"] > $b["score"] ? 1 : -1;
});
?>
<table width="200" border="1">
<tr>
<td width="85">Nom</td>
<td width="99">Score</td>
</tr>
<?php foreach($data as $user){ ?>
<tr>
<td height="119"><?php echo $user["username"]; ?></td>
<td><?php echo $user["score"]; ?></td>
</tr>
<?php } ?>
</table>
输出:
Nom Score // Nom Score
e 2 // d 123
a 5 // c 26
b 15 // b 15
c 26 // a 5
d 123 // e 2
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