在PHP中为用户创建CSV文件-Java 学习之路

207

我在MySQL数据库中有数据 . 我正在向用户发送一个URL，将其数据作为CSV文件发送出去 .

我有电子邮件的链接，MySQL查询等 .

当他们点击链接时，我怎么能弹出一个下载带有MySQL记录的CVS？

我已经掌握了记录的所有信息 . 我只是不知道如何让PHP创建CSV文件并让他们下载扩展名为.csv的文件 .

20 回答

450

简单的方法 -

$data = array (
    'aaa,bbb,ccc,dddd',
    '123,456,789',
    '"aaa","bbb"');

$fp = fopen('data.csv', 'wb');
foreach($data as $line){
    $val = explode(",",$line);
    fputcsv($fp, $val);
}
fclose($fp);

因此 $data 数组的每一行都将转到新创建的CSV文件的新行 . 它仅适用于PHP 5及更高版本 .

回复于 2024-04-19T14:04:13+08:00

16
除了已经说过的所有内容之外，您可能还需要添加：
```
header("Content-Transfer-Encoding: UTF-8");
```
在处理包含多种语言的文件（如人名或城市）时，它非常有用 .
回复于 2024-04-19T14:04:13+08:00
1
要让它以CSV格式发送并让它给出文件名，请使用header（）：

http://us2.php.net/header
```
header('Content-type: text/csv');
header('Content-disposition: attachment; filename="myfile.csv"');
```
至于制作CSV本身，您只需遍历结果集，格式化输出并发送它，就像您将其他内容一样 .
回复于 2024-04-19T14:04:13+08:00

这是我以前做过的，在某些日期之间抓取数据 . 希望能帮助到你 .

<?php
    header("Content-type: application/csv");
    header("Content-Disposition: attachment; filename=file.csv");
    header("Pragma: no-cache");
    header("Expires: 0");

    ini_set('display_errors',1);
    $private=1;
    error_reporting(E_ALL ^ E_NOTICE);

    mysql_connect("localhost", "user", "pass") or die(mysql_error());
    mysql_select_db("db") or die(mysql_error());

    $start = mysql_real_escape_string($_GET["start"]);
    $end = mysql_real_escape_string($_GET["end"]);

    $query = "SELECT * FROM customers WHERE created>='{$start} 00:00:00'  AND created<='{$end} 23:59:59'   ORDER BY id";
    $select_c = mysql_query($query) or die(mysql_error());

    while ($row = mysql_fetch_array($select_c, MYSQL_ASSOC))
    {
        $result.="{$row['email']},";
        $result.="\n";
        echo $result;
    }
?>

回复于 2024-04-19T14:04:13+08:00

0

编写自己的CSV代码可能是浪费你的时间，只需使用诸如league / csv之类的软件包 - 它可以处理所有困难的东西，文档很好而且非常稳定/可靠：

http://csv.thephpleague.com/

你_461120知道作曲家是什么我强烈建议你看看：https://getcomposer.org/

回复于 2024-04-19T14:04:13+08:00
9
我知道，这个帖子有点旧，但是为了将来的参考和我自己的新手：

这里的其他人都解释了如何创建CSV，但错过了问题的基本部分：如何链接 . 为了链接到CSV文件的下载，您只需链接到.php文件，该文件又响应为.csv文件 . PHP Headers 就是这样做的 . 这可以实现很酷的东西，比如在查询字符串中添加变量并自定义输出：
```
<a href="my_csv_creator.php?user=23&amp;othervariable=true">Get CSV</a>
```
my_csv_creator.php可以使用查询字符串中给出的变量，例如使用不同的或自定义的数据库查询，更改CSV的列，个性化文件名等，例如：
```
User_John_Doe_10_Dec_11.csv
```
回复于 2024-04-19T14:04:13+08:00

您只需使用fputcsv函数将数据写入CSV即可 . 让我们看一下下面的例子 . 将列表数组写入CSV文件

$list[] = array("Cars", "Planes", "Ships");
$list[] = array("Car's2", "Planes2", "Ships2");
//define headers for CSV 
header('Content-Type: text/csv; charset=utf-8');
header('Content-Disposition: attachment; filename=file_name.csv');
//write data into CSV
$fp = fopen('php://output', 'wb');
//convert data to UTF-8 
fprintf($fp, chr(0xEF).chr(0xBB).chr(0xBF));
foreach ($list as $line) {
    fputcsv($fp, $line);
}
fclose($fp);

回复于 2024-04-19T14:04:13+08:00

代替：

$query = "SELECT * FROM customers WHERE created>='{$start} 00:00:00'  AND created<='{$end} 23:59:59'   ORDER BY id";
$select_c = mysql_query($query) or die(mysql_error()); 

while ($row = mysql_fetch_array($select_c, MYSQL_ASSOC))
{
    $result.="{$row['email']},";
    $result.="\n";
    echo $result;
}

使用：

$query = "SELECT * FROM customers WHERE created>='{$start} 00:00:00'  AND created<='{$end} 23:59:59'   ORDER BY id";
$select_c = mysql_query($query) or die(mysql_error()); 

while ($row = mysql_fetch_array($select_c, MYSQL_ASSOC))
{
    echo implode(",", $row)."\n";
}

回复于 2024-04-19T14:04:13+08:00

首先将数据作为字符串，使用逗号作为分隔符（用“，”分隔） . 像这样的东西

$CSV_string="No,Date,Email,Sender Name,Sender Email \n"; //making string, So "\n" is used for newLine

$rand = rand(1,50); //Make a random int number between 1 to 50.
$file ="export/export".$rand.".csv"; //For avoiding cache in the client and on the server 
                                     //side it is recommended that the file name be different.

file_put_contents($file,$CSV_string);

/* Or try this code if $CSV_string is an array
    fh =fopen($file, 'w');
    fputcsv($fh , $CSV_string , ","  , "\n" ); // "," is delimiter // "\n" is new line.
    fclose($fh);
*/

回复于 2024-04-19T14:04:13+08:00

<?
    // Connect to database
    $result = mysql_query("select id
    from tablename
    where shid=3");
    list($DBshid) = mysql_fetch_row($result);

    /***********************************
    Write date to CSV file
    ***********************************/

    $_file = 'show.csv';
    $_fp = @fopen( $_file, 'wb' );

    $result = mysql_query("select name,compname,job_title,email_add,phone,url from UserTables where id=3");

    while (list( $Username, $Useremail_add, $Userphone, $Userurl) = mysql_fetch_row($result))
    {
        $_csv_data = $Username.','.$Useremail_add.','.$Userphone.','.$Userurl . "\n";
        @fwrite( $_fp, $_csv_data);
    }
    @fclose( $_fp );
?>

回复于 2024-04-19T14:04:13+08:00

已经有很好的解决方案了 . 我只是把总代码放在一起，以便新手得到全面的帮助

<?php
extract($_GET); //you can send some parameter by query variable. I have sent table name in *table* variable

header("Content-type: text/csv");
header("Content-Disposition: attachment; filename=$table.csv");
header("Pragma: no-cache");
header("Expires: 0");

require_once("includes/functions.php"); //necessary mysql connection functions here

//first of all I'll get the column name to put title of csv file.
$query = "SHOW columns FROM $table";
$headers = mysql_query($query) or die(mysql_error());
$csv_head = array();
while ($row = mysql_fetch_array($headers, MYSQL_ASSOC))
{
    $csv_head[] =  $row['Field'];
}
echo implode(",", $csv_head)."\n";

//now I'll bring the data.
$query = "SELECT * FROM $table";
$select_c = mysql_query($query) or die(mysql_error()); 

while ($row = mysql_fetch_array($select_c, MYSQL_ASSOC))
{
    foreach ($row as $key => $value) {
            //there may be separator (here I have used comma) inside data. So need to put double quote around such data.
        if(strpos($value, ',') !== false || strpos($value, '"') !== false || strpos($value, "\n") !== false) {
            $row[$key] = '"' . str_replace('"', '""', $value) . '"';
        }
    }
    echo implode(",", $row)."\n";
}

?>

我已将此代码保存在csv-download.php中

现在看看我是如何使用这些数据下载csv文件的

<a href="csv-download.php?table=tbl_vfm"><img title="Download as Excel" src="images/Excel-logo.gif" alt="Download as Excel" /><a/>

因此，当我点击链接时，它会下载文件，而不会将我带到浏览器上的csv-download.php页面 .

回复于 2024-04-19T14:04:13+08:00

最简单的方法是使用像这样的专用CSV class：

$csv = new csv();
$csv->load_data(array(
    array('name'=>'John', 'age'=>35),
    array('name'=>'Adrian', 'age'=>23), 
    array('name'=>'William', 'age'=>57) 
));
$csv->send_file('age.csv');

回复于 2024-04-19T14:04:13+08:00

尝试：

header("Content-type: text/csv");
header("Content-Disposition: attachment; filename=file.csv");
header("Pragma: no-cache");
header("Expires: 0");

echo "record1,record2,record3\n";
die;

等等

编辑：这是我用来选择编码CSV字段的代码片段：

function maybeEncodeCSVField($string) {
    if(strpos($string, ',') !== false || strpos($string, '"') !== false || strpos($string, "\n") !== false) {
        $string = '"' . str_replace('"', '""', $string) . '"';
    }
    return $string;
}

回复于 2024-04-19T14:04:13+08:00

以下是使用PDO并包含列 Headers 的完整工作示例：

$query = $pdo->prepare('SELECT * FROM test WHERE id=?');
$query->execute(array($id));    
$results = $query->fetchAll(PDO::FETCH_ASSOC);
download_csv_results($results, 'test.csv'); 
exit();


function download_csv_results($results, $name)
{            
    header('Content-Type: text/csv');
    header('Content-Disposition: attachment; filename='. $name);
    header('Pragma: no-cache');
    header("Expires: 0");

    $outstream = fopen("php://output", "wb");    
    fputcsv($outstream, array_keys($results[0]));

    foreach($results as $result)
    {
        fputcsv($outstream, $result);
    }

    fclose($outstream);
}

回复于 2024-04-19T14:04:13+08:00

将__61125_变量放入CSV数据并使用正确的 Headers 回显

header("Content-type: application/download\r\n");
header("Content-disposition: filename=filename.csv\r\n\r\n");
header("Content-Transfer-Encoding: ASCII\r\n");
header("Content-length: ".strlen($output)."\r\n");
echo $output;

回复于 2024-04-19T14:04:13+08:00

这是@Andrew发布的php.net函数的改进版本 .

function download_csv_results($results, $name = NULL)
{
    if( ! $name)
    {
        $name = md5(uniqid() . microtime(TRUE) . mt_rand()). '.csv';
    }

    header('Content-Type: text/csv');
    header('Content-Disposition: attachment; filename='. $name);
    header('Pragma: no-cache');
    header("Expires: 0");

    $outstream = fopen("php://output", "wb");

    foreach($results as $result)
    {
        fputcsv($outstream, $result);
    }

    fclose($outstream);
}

它非常易于使用，并且适用于MySQL（i）/ PDO结果集 .

download_csv_results($results, 'your_name_here.csv');

如果您已完成页面调用，请记得 exit() .

回复于 2024-04-19T14:04:13+08:00

-1

如何使用PHP脚本在CSV文件中编写？其实我也在搜索它 . 使用PHP是一件容易的事 . fputs（处理程序，内容） - 这个功能对我有效 . 首先，您需要使用fopen（$ CSVFileName，'wb'）打开需要编写内容的文件 .

$CSVFileName = “test.csv”;
$fp = fopen($CSVFileName, ‘wb’);

//Multiple iterations to append the data using function fputs()
foreach ($csv_post as $temp)
{
    $line = “”;
    $line .= “Content 1″ . $comma . “$temp” . $comma . “Content 2″ . $comma . “16/10/2012″.$comma;
    $line .= “\n”;
    fputs($fp, $line);
}

回复于 2024-04-19T14:04:13+08:00

创建您的文件，然后使用正确的 Headers 返回对它的引用以触发另存为 - 根据需要编辑以下内容 . 将您的CSV数据放入$ csvdata .

$fname = 'myCSV.csv';
$fp = fopen($fname,'wb');
fwrite($fp,$csvdata);
fclose($fp);

header('Content-type: application/csv');
header("Content-Disposition: inline; filename=".$fname);
readfile($fname);

回复于 2024-04-19T14:04:13+08:00

271

header("Content-Type: text/csv");
header("Content-Disposition: attachment; filename=file.csv");

function outputCSV($data) {
  $output = fopen("php://output", "wb");
  foreach ($data as $row)
    fputcsv($output, $row); // here you can change delimiter/enclosure
  fclose($output);
}

outputCSV(array(
  array("name 1", "age 1", "city 1"),
  array("name 2", "age 2", "city 2"),
  array("name 3", "age 3", "city 3")
));

php://output
fputcsv

回复于 2024-04-19T14:04:13+08:00

嘿它工作得很好...... !!!!谢谢Peter Mortensen和Connor Burton

<?php
header("Content-type: application/csv");
header("Content-Disposition: attachment; filename=file.csv");
header("Pragma: no-cache");
header("Expires: 0");

ini_set('display_errors',1);
$private=1;
error_reporting(E_ALL ^ E_NOTICE);

mysql_connect("localhost", "user", "pass") or die(mysql_error());
mysql_select_db("db") or die(mysql_error());

$start = $_GET["start"];
$end = $_GET["end"];

$query = "SELECT * FROM customers WHERE created>='{$start} 00:00:00'  AND created<='{$end} 23:59:59'   ORDER BY id";
$select_c = mysql_query($query) or die(mysql_error());

while ($row = mysql_fetch_array($select_c, MYSQL_ASSOC))
{
    $result.="{$row['email']},";
    $result.="\n";
    echo $result;
}

？>

回复于 2024-04-19T14:04:13+08:00

在PHP中为用户创建CSV文件

20 回答

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