What are common pitfalls for beginners when trying to get a PHP shop online?

Common pitfalls for beginners when trying to get a PHP shop online include not properly securing user input, not handling errors effectively, and not optimizing database queries. To solve these issues, beginners should use prepared statements to prevent SQL injection attacks, implement error handling to provide informative messages to users, and optimize database queries to improve performance. 

// Example of using prepared statements to secure user input
$stmt = $pdo->prepare("SELECT * FROM products WHERE id = :id");
$stmt->bindParam(':id', $id, PDO::PARAM_INT);
$stmt->execute();
```

```php
// Example of error handling in PHP
try {
    // code that may throw an exception
} catch (Exception $e) {
    echo "An error occurred: " . $e->getMessage();
}
```

```php
// Example of optimizing a database query in PHP
$query = "SELECT * FROM products WHERE category = :category ORDER BY price DESC LIMIT 10";
$stmt = $pdo->prepare($query);
$stmt->bindParam(':category', $category, PDO::PARAM_STR);
$stmt->execute();

Keywords

MySQL Apache security vulnerabilities SQL injection SSL encryption

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