Are there any specific resources or guidelines for PHP security best practices?

One important PHP security best practice is to use prepared statements when interacting with a database to prevent SQL injection attacks. Prepared statements separate SQL code from user input, making it impossible for malicious input to alter the SQL query. To implement prepared statements in PHP, you can use PDO (PHP Data Objects) or MySQLi. 

```php
// Using PDO for prepared statements
$pdo = new PDO('mysql:host=localhost;dbname=mydatabase', 'username', 'password');
$stmt = $pdo->prepare('SELECT * FROM users WHERE username = :username');
$stmt->bindParam(':username', $username);
$stmt->execute();
```

Remember to always validate and sanitize user input before using it in your application to prevent security vulnerabilities.

Keywords

OWASP PHP security XSS SQL injection CSRF

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