MySQL database to .TXT using PHP

Question

I have a form in html5 and on submit it runs the php script which then connects to the MySQL database, insert it into a table and then write down all the lines that are in the table to a .txt file.

For some reason it gives the following warnings:

1 record added
Warning: fopen(C:/xampp2/htdocs/bap000/opdr002_config.txt): failed to open stream: No error in C:\xampp2\htdocs\bap000\opdr002_input.php on line 25

Warning: mysqli_fetch_array() expects parameter 1 to be mysqli_result, boolean given in C:\xampp2\htdocs\bap000\opdr002_input.php on line 28

Warning: fclose() expects parameter 1 to be resource, boolean given in C:\xampp2\htdocs\bap000\opdr002_input.php on line 33

The form:

<html>
<head>
<title>bap les</title>
</head>
<body>

<form name="formOne" method="post" action="opdr002_input.php">
Color:
<select name="color">
<option value="blue">Blue</option>
<option value="red">Red</option>
</select>
<br />
X:
<input type="number" name="xCord" maxlength="3" />
<br />
Y:
<input type="number" name="yCord" maxlength="3" />
<br />
Z:
<input type="number" name="zCord" maxlength="3" />
<br />

<input type="submit" />
</form>

</body>
</html>

the PHP script:

<?php
// Make connection
$con = mysqli_connect("localhost","root","","map_db");

// Check connection
if (mysqli_connect_error()) {
    echo "Failed to connect to MySQL: " . mysqli_connect_error();
}

// Insert values into the Database
$sql = "INSERT INTO `map_db`.`lines` (`color`, `xCords`, `yCords`, `zCords`) VALUES
('$_POST[color]','$_POST[xCord]','$_POST[yCord]','$_POST[zCord]')";

// Check for errors
if (!mysqli_query($con, $sql)) {
    die('Error: ' . mysqli_error($con));
}

// Redirect user to page saying:
echo "1 record added";

// $result will contain everything inside the lines table
$result = mysqli_query($con,"SELECT * FROM lines");
$data = null;
$theFile = fopen("C:/xampp2/htdocs/bap000/opdr002_config.txt", "W");

// Loop through the lines using $row
while ($row = mysqli_fetch_array($result)) {
    $data = $row['color'] . "," . $row['xCords'] . "," . $row['yCords'] . "," . $row['zCords'] . '\n';
    $addData = fputs($theFile, trim($data));
}

fclose($theFile);

// Close the connection
mysqli_close($con);
?>

Could anyone help me please?

Answer 1

Check the permissions of "opdr002_config.txt" - most likely php doesn't have write permission.

Also check if

mysqli_query($con,"SELECT * FROM lines");

is running properly. try with:

mysqli_query($con,"SELECT * FROM map_db . lines ");

You might check the first query too.

See this function for cheching the query errors.

MySQL database to .TXT using PHP

Question

1 answers

solution1
1 ACCPTED 2014-04-23 13:29:18

MySQL database to .TXT using PHP

Question

1 answers

solution1 1 ACCPTED 2014-04-23 13:29:18

solution1
1 ACCPTED 2014-04-23 13:29:18