用PHP语言写一个在图书数据库中统计相同编著的图书个数

好的，可以使用PHP语言和MySQL数据库来实现该功能。以下是代码示例：

首先，需要连接到MySQL数据库：

$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname);

// 检测连接
if ($conn->connect_error) {
  die("连接失败: " . $conn->connect_error);
}

然后，可以编写SQL查询语句来统计相同编著的图书个数：

$sql = "SELECT author, COUNT(*) as count FROM books GROUP BY author";

$result = $conn->query($sql);

if ($result->num_rows > 0) {
  // 输出每行数据
  while($row = $result->fetch_assoc()) {
    echo "编著者: " . $row["author"]. " - 图书个数: " . $row["count"]. "<br>";
  }
} else {
  echo "0 结果";
}

最后，记得关闭数据库连接：

$conn->close();

完整代码示例：

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname);

// 检测连接
if ($conn->connect_error) {
  die("连接失败: " . $conn->connect_error);
}

$sql = "SELECT author, COUNT(*) as count FROM books GROUP BY author";

$result = $conn->query($sql);

if ($result->num_rows > 0) {
  // 输出每行数据
  while($row = $result->fetch_assoc()) {
    echo "编著者: " . $row["author"]. " - 图书个数: " . $row["count"]. "<br>";
  }
} else {
  echo "0 结果";
}

$conn->close();
?>

需要根据实际情况修改数据库连接信息和SQL查询语句。