如何更改列表CSV，反之亦然，在PHP

Question

我有一个文本文件中像....

arfc@net.xz

editor@magazine.com

nafi@cyber.net

nau@times.com

jai@mail.com

我想在一点PHP的帮助下将其转换为CSV，并且我也想知道它是如何颠倒的......即从CSV到有序或无序列表.....好心帮我请:)

Answer 1

要转换为CSV

$data=file_get_contents("file"); 
$data =explode("\n\n",$data); 
echo implode(",",array_filter($data)); 

根据需要更新，以从CSV转换，

$data = explode(",", file_get_contents("file")); 
echo implode("\n\n",$data); 

对于CSV多行数据，则可以使用fgetcsv()遍历文件。例如

if (($handle = fopen("file.csv", "r")) !== FALSE) { 
    while (($data = fgetcsv($handle, 2048, ",")) !== FALSE) { 
     $num = count($data); 
     for ($c=0; $c < $num; $c++) { 
      echo $data[$c] . "<br />\n"; 
     } 
    } 
    fclose($handle); 
} 

Answer 2

<?php 
//read file 
$content = file_get_content($filteredFilePath); 

//explode contents into array 
//if you use windows or mac, newlines may be different 
//i.e: \r, \r\n 
$list = explode("\n\n", $content); 

//iterate over the items and print a HTML list 
//to generate ordered list, use: <ol> 
echo '<ul>'; 
foreach($list as $item) { 
    echo '<li>' . $item . '</li>'; 
} 
echo '</ul>'; 

编辑：我做了一些修改，采用双换行工作。