使用PHP将MySQL数据库转换为.TXT

Question

我在html5中有一个表单，提交后运行php脚本，然后将其连接到MySQL数据库，将其插入表中，然后将表中的所有行记为.txt文件。

由于某种原因，它会给出以下警告：

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

表格：

<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>

PHP脚本：

<?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);
?>

有人可以帮我吗？

Answer 1

检查“ opdr002_config.txt”的权限-最有可能的php没有写权限。

同时检查是否

mysqli_query（$ con，“ SELECT * FROM lines”）;

运行正常。 尝试：

mysqli_query（$ CON， “SELECT * FROM map_db 。 lines ”）;

您也可以检查第一个查询。

查看此功能可查询查询错误。

使用PHP将MySQL数据库转换为.TXT

问题描述

1 个解决方案

解决方案1
1 已采纳 2014-04-23 13:29:18

使用PHP将MySQL数据库转换为.TXT

问题描述

1 个解决方案

解决方案1 1 已采纳 2014-04-23 13:29:18

解决方案1
1 已采纳 2014-04-23 13:29:18