我在MySQL数据库中有数据。我向用户发送一个URL，以获取他们的数据作为CSV文件。
我有链接的电子邮件，MySQL查询等覆盖。
当他们点击链接时，如何弹出从MySQL下载带有记录的CVS的窗口?
我已经有了所有能拿到唱片的资料。我只是不明白如何让PHP创建CSV文件，并让他们下载一个扩展名为. CSV的文件。
当前回答
<?
// 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 );
?>
其他回答
最简单的方法是使用一个专门的CSV类，像这样:
$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');
公共函数actionExportnotificationresponselogdata() {
$fileName = '/tmp/notificationresponselogs_' . date('d-m-Y-g-i-h') . '.csv';
$f = fopen($fileName, 'w');
fputs( $f, "\xEF\xBB\xBF" ); //for utf8 support in csv
$csv_fields=array();
$csv_fields[] = 'heading1';
$csv_fields[] = 'heading2';
$csv_fields[] = 'heading3';
$csv_fields[] = 'heading4';
$csv_fields[] = 'heading5';
$csv_fields[] = 'heading6';
$csv_fields[] = 'heading7';
$csv_fields[] = 'heading8';
fputcsv($f, $csv_fields);
$notification_log_arr = $notificationObj->getNotificationResponseForExport($params); //result from database
if (count($notification_log_arr) > 0) {
$serialNumber=1;
foreach ($notification_log_arr AS $notifaction) {
$fields = array();
$fields['serialNumber']= $serialNumber ;
$fields['fld_1']= $notifaction['fld_1'] ;
$fields['fld_2']= $notifaction['fld_2'] ;
$fields['fld_3']= $notifaction['fld_3'] ;
$fields['fld_4']= $notifaction['fld_4'] ;
$fields['fld_5']= $notifaction['fld_5'] ;
$fields['fld_6']= $notifaction['fld_6'] ;
$fields['fld_7']= $notifaction['fld_7'] ;
// print_r($fields); die;
fputcsv($f, $fields,",");
$serialNumber++; }
fclose($f);
if (file_exists($fileName)) {
header("Content-type: application/csv");
header("Content-Disposition: attachment; filename="."exportlog".date("Y-m-d_H:i").".csv");
header("Content-length: " . filesize($fileName));
header("Pragma: no-cache");
header("Expires: 0");
readfile($fileName);
unlink($fileName);
exit;
}
}
要让它以CSV格式发送，并给出文件名，请使用header():
http://us2.php.net/header
header('Content-type: text/csv');
header('Content-disposition: attachment; filename="myfile.csv"');
至于创建CSV本身，您只需要遍历结果集，格式化输出并发送它，就像处理任何其他内容一样。
下面是一个使用PDO并包含列标题的完整工作示例:
$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);
}
下面是@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);
}
它真的很容易使用，并且与MySQL(i)/PDO结果集一起工作。
download_csv_results($results, 'your_name_here.csv');
如果完成了页面，请记住在调用此函数后退出()。
