Question

嗨，我想使用php将新列添加到名为task的表中。香港专业教育学院尝试了多种方法，但是当我进入phpmyadmin时，那里没有新的列。：当前代码

<?php
$date = date("d/m/Y");
$ip = $_SERVER['REMOTE_ADDR'];

$servername = "localhost";
$database = "webdata 2";
$username = "admin";
$password = "********";

// Create connection

$conn = mysqli_connect($servername, $username, $password, $database);

// Check connection

if (!$conn) {
  die("Connection failed: " . mysqli_connect_error());
}

echo "";

$sql = "INSERT INTO tasks (username) VALUES ('$ip')";

if (mysqli_query($conn, $sql)) {
     echo "New record created successfully";
} else {
  echo "Error: " . $sql . "<br>" . mysqli_error($conn);
}
mysqli_close($conn);
?>

Answer 1

您编写的代码用于添加新行，如果要添加新列，则需要将变量$sql更改为此代码

$sql = "ALTER TABLE table_name ADD [COLUMN] column_name column_definition";

有关更多信息，请访问此link

无法使用php7.0将列添加到表

1 个答案: