[英]Records are not coming in textfile from mysql
Here, I want to fetch record from mysql to textfile that I am writing into textfile.在这里,我想从 mysql 中获取记录到我正在写入文本文件的文本文件。
But textfile is creating as blank.但是文本文件正在创建为空白。
Where is the problem?问题出在哪儿?
My code:我的代码:
$myFile = 'abctest.txt';
//echo $myFile;exit;
$fo = fopen('com_order/order_textfile/'.$myFile, 'w+') or die("can't open file");
$data_query=mysql_query("SELECT order_id from tbl_order") or die(mysql_error());
while($data=mysql_fetch_array($data_query))
{
$stringData = fwrite($fo, "Order: ".$data['order_id']."\n");
}
fwrite($fo, $stringData);
fclose($fo);
header('Content-type: text/plain');
header('Content-disposition: attachment; filename='.$myFile);
readfile() call is missing:缺少readfile()调用:
readfile($myFile);
So it should look like this:所以它应该是这样的:
header('Content-type: text/plain');
header('Content-disposition: attachment; filename='.$myFile);
readfile($myFile);
Here readfile() is the function which actually performs all the hard work (reads the file, writes to output).这里 readfile() 是实际执行所有艰苦工作的函数(读取文件,写入输出)。
More on the topic:有关该主题的更多信息:
UPDATE更新
Also you have a file path problem你也有文件路径问题
Note that you create file in com_order/order_textfile/'.$myFile
but then use $myFile without the path.请注意,您在
com_order/order_textfile/'.$myFile
创建文件,然后使用没有路径的 $myFile 。 When referencing file you should use path instead:引用文件时,您应该使用路径:
$myFile = 'abctest.txt';
$filePath = 'com_order/order_textfile/'.$myFile;
$fo = fopen($filePath, 'w+') or die("can't open file");
$data_query=mysql_query("SELECT order_id from tbl_order") or die(mysql_error());
while($data=mysql_fetch_array($data_query))
{
$stringData = fwrite($fo, "Order: ".$data['order_id']."\n");
}
fwrite($fo, $stringData);
fclose($fo);
header('Content-type: text/plain');
header('Content-disposition: attachment; filename='.$filePath);
readfile($filePath);
It seems like there is a problem with the way you execute your query but try the code below it's working.您执行查询的方式似乎存在问题,但请尝试使用下面的代码。
$link = mysqli_connect("localhost", "username", "password", "database name") or die("error unable to connect to database". mysqli_error($link));
$myFile = 'abctest.txt';
//echo $myFile;exit;
$fo = fopen('com_order/order_textfile/'.$myFile, 'w+') or die("can't open file");
$data_query=$link->query("SELECT order_id from tbl_order") or die(mysql_error());
while($data=mysqli_fetch_array($data_query))
{
$stringData = fwrite($fo, "Order: ".$data['order_id']."\n");
//echo("$stringData");
}
fwrite($fo, $stringData);
fclose($fo);
header('Content-type: text/plain');
header('Content-disposition: attachment; filename='.$myFile);
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