How to use PHP to develop employee attendance data query tool?
How to use PHP to develop employee attendance data query tool?
Abstract: This article will introduce how to use PHP to develop a simple employee attendance data query tool. We will store employee attendance data through the MySQL database, and use PHP to write the query page and database connection code.
Keywords: PHP, employee attendance data, query tools, MySQL, database connection
1. Preparation work
- First, we need to install it in the local environment PHP and MySQL, make sure they are running properly.
- Create a MySQL database to store employee attendance data. You can use the following SQL statement to create a simple table to store data:
CREATE TABLE attendance (
id INT PRIMARY KEY AUTO_INCREMENT,
emp_id INT NOT NULL,
date DATE NOT NULL,
time_in TIME NOT NULL,
time_out TIME,
status ENUM('Present', 'Absent') NOT NULL
);2. Write the database connection code
- In the root directory of the project, create a table named "dbconn.php" file. This file will be used for database connections and referenced in other files. In "dbconn.php", write the following code:
<?php
$servername = "localhost";
$username = "your_username";
$password = "your_password";
$dbname = "your_database_name";
// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname);
// 检查连接是否成功
if ($conn->connect_error) {
die("连接失败: " . $conn->connect_error);
}
?>Please replace "your_username", "your_password" and "your_database_name" with your MySQL connection credentials and database name.
3. Write the query page code
- Create a file named "index.php" in the project root directory as the employee attendance data query page. Write the following code:
<?php
include('dbconn.php');
$query = "SELECT * FROM attendance";
$result = $conn->query($query);
?>
<!DOCTYPE html>
<html>
<head>
<title>员工考勤数据查询工具</title>
</head>
<body>
<h1 id="员工考勤数据查询工具">员工考勤数据查询工具</h1>
<table>
<tr>
<th>ID</th>
<th>员工ID</th>
<th>日期</th>
<th>签到时间</th>
<th>签退时间</th>
<th>状态</th>
</tr>
<?php
if ($result->num_rows > 0) {
while ($row = $result->fetch_assoc()) {
echo "<tr>";
echo "<td>" . $row['id'] . "</td>";
echo "<td>" . $row['emp_id'] . "</td>";
echo "<td>" . $row['date'] . "</td>";
echo "<td>" . $row['time_in'] . "</td>";
echo "<td>" . $row['time_out'] . "</td>";
echo "<td>" . $row['status'] . "</td>";
echo "</tr>";
}
} else {
echo "没有可用的数据";
}
?>
</table>
</body>
</html>4. Run the query tool
- Save the above code and place the project in the root folder of your Web server.
- Enter your project URL in a web browser, such as "localhost/your_project_folder/index.php".
- You will see a simple employee attendance data query page, which displays the data retrieved from the database by the SELECT query.
Conclusion:
By following the steps in this article, you can develop a simple employee attendance data query tool using PHP. By modifying the database connection code and query page code, you can adapt it to any data set and need. I hope this article can help you quickly build an employee attendance data query tool.
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