Question

我有多个具有相同列的.csv文件。我想将它们合并到一个新的.csv文件中。但我得到空档.csv

例如，我有三个文件：

CSV 1：

ID,name,age
1,Andy,18
2,Mary,19
3,Buddy,19
...

CSV 2：

ID,name,age
5,Andy,18
6,Cindy,20
...

CSV 3：

ID,name,age
9,Mody,18
10,Trudy,20
15,Windy,20
17,Somebody,22
...

我想要的结果是：

ID,name,age
1,Andy,18
2,Mary,19
3,Buddy,19
5,Andy,18
6,Cindy,20
9,Mody,18
10,Trudy,20
15,Windy,20
17,Somebody,22

我尝试使用我的代码，但它给了我空文件：

$handle = fopen($file, "r");
$data = fgetcsv($handle, 0, ",");
fclose($handle);
$name = $_SERVER["DOCUMENT_ROOT"].'pathfile.csv';
$fopen = fopen($name, 'a');
fputcsv($fopen,$data,',','');
fclose($fopen);

Answer 1

<?php
function joinFiles(array $files, $result) {
if(!is_array($files)) {
    throw new Exception('`$files` must be an array');
}

$wH = fopen($result, "w+");

foreach($files as $file) {
    $fh = fopen($file, "r");
    while(!feof($fh)) {
        fwrite($wH, fgets($fh));
    }
    fclose($fh);
    unset($fh);
    fwrite($wH, "\n"); //usually last line doesn't have a newline
}
fclose($wH);
unset($wH);
}?>

用法：

<?php
joinFiles(array('join1.csv', 'join2.csv'), 'join3.csv');?>

合并后，您可以轻松排序

读取多个CSV文件并将其写入新的CSV文件php

1 个答案: