我想创建一个脚本，通过PHP运行任何查询，就像通过调用MySQL::query([the query]);一样通过MySQL控制台运行它。
我已经创建了很多PHP脚本，但我认为我已经陷入困境。到目前为止，它可以很好地提取信息，但当我尝试对数据库本身进行任何更改时，它不喜欢它。我也希望它也写入MySQL，但我无法弄清楚如何动态地做到这一点。
这是我到目前为止的代码：
<?php
include '..\..\shared\Error_Code.php';
class MySQL {
private static $host;
private static $username;
private static $password;
private static $database;
private static $logged_in = false;
public static function login($host, $username, $password, $database) {
self::$host = $host;
self::$username = $username;
self::$password = $password;
self::$database = $database;
if (self::confirm_login()) {
self::$logged_in = true;
} else {
self::$logged_in = false;
Error_Code::print(107.0); //There was an issue with the login.
}
}
public static function change_database($database) {
if (self::$logged_in) {
$old_database = self::$database;
self::$database = $database;
if (!self::confirm_login()) {
self::$database = $database;
Error_Code::print(107.1); //The database you entered dose not exist.
}
} else {
Error_Code::print(107.2); //You have not logged in yet.
}
}
private static function confirm_login($host = -1, $username = -1, $password = -1, $database = -1) {
$host = (($host != -1) ? $host : self::$host);
$username = (($username != -1) ? $username : self::$username);
$password = (($password != -1) ? $password : self::$password);
$database = (($database != -1) ? $database : self::$database);
if (!(is_null(self::$host) || is_null(self::$username) || is_null(self::$password) || is_null(self::$database))) {
$connection = mysqli_connect($host, $username, $password);
if ($connection) {
$response = mysqli_query($connection, "SHOW DATABASES");
$bg_db = array("information_schema", "mysql", "performance_schema", "phpmyadmin", "test");
if (!in_array(self::$database, $bg_db)) {
while ($row = mysqli_fetch_assoc($response)) {
if($row['Database'] == self::$database) {
return true;
}
}
}
Error_Code::print(107.8); //Login information is wrong.
return false;
} else {
Error_Code::print(107.9); //Login information is wrong.
return false;
}
} else {
Error_Code::print(107.7); //Login information is missing.
return false;
}
}
public static function logged_in() {
return self::$logged_in;
}
public static function query($query, $host = -1, $username = -1, $password = -1, $database = -1) {
$host = (($host != -1) ? $host : self::$host);
$username = (($username != -1) ? $username : self::$username);
$password = (($password != -1) ? $password : self::$password);
$database = (($database != -1) ? $database : self::$database);
$continue = self::confirm_login($host, $username, $password, $database);
if ($continue) {
return new Data($query, $host, $username, $password, $database);
} else {
return new Data($query, $host, $username, $password, $database);
Error_Code::print(107.3); //You have not logged into a database.
}
}
}
class Data {
private $query;
private $host;
private $username;
private $password;
private $database;
public function __construct($query, $host, $username, $password, $database) {
if ($query < 0) {
return $this;
} else {
$this->query = $query;
$this->host = $host;
$this->username = $username;
$this->password = $password;
$this->database = $database;
return $this->get();
}
}
//get data from a database using an SQL query
public function get() {
//query database
$connection = mysqli_connect($this->host, $this->username, $this->password, $this->database);
if ($connection) {
$response = mysqli_query($connection, $this->query);
//get data from query
if ($response) {
$rows = array();
while ($row = mysqli_fetch_array($response, MYSQLI_ASSOC)) {
array_push($rows, $row);
}
return $rows;
} else {
if (true) {
//<----- I THINK THIS IS WHERE I WOULD HAVE TO ADD THE CODE FOR MAKING CHANGES TO THE DATABASE
//$prepare = mysqli_prepare($connection, $this->query);
//mysqli_stmt_execute($prepare);
} else {
Error_Code::print(108.0); //Could not run query because there was no response
return -1;
}
}
} else {
Error_Code::print(108.1); //Could not run query because there was no connection
return -1;
}
}
//print the results of the query to a table
public function print_table($table_id = -1) {
$data = $this->get();
if ($data < 0) {
Error_Code::print(108.2); //Could not build table do to an issue with the query.
return -1;
} else {
$th = "<tr>";
foreach ($data[0] as $col => $value) {
$th = "$th<th>$col</th>";
}
$th = "$th</tr>";
$td = "";
foreach ($data as $row) {
$td = "$td<tr>";
foreach ($row as $col => $value) {
$td = "$td<td>$value</td>";
}
$td = "$td</tr>";
}
$table_id = ($table_id < 0) ? "" : " id='$table_id'";
echo "<table class='database_data'$table_id>$th$td</table>";
return 1;
}
}
}
?>
有关我可以更改的内容的任何想法，以便将其转移到INSERT，DELETE，UPDATE以及其他所有内容。
答案 0 :(得分：0)
检查一下： https://github.com/indieteq/indieteq-php-my-sql-pdo-database-class
对于您的需求可能有点过分，但在我看来，这是如何构建数据库类的一个很好的例子