What are some common mistakes to avoid when trying to edit or delete table contents in PHP?

One common mistake to avoid when editing or deleting table contents in PHP is not properly sanitizing user input, which can lead to SQL injection attacks. To prevent this, always use prepared statements with parameterized queries to securely interact with the database. 

```php
// Example of using prepared statements to edit or delete table contents in PHP

// Establish a database connection
$pdo = new PDO('mysql:host=localhost;dbname=mydatabase', 'username', 'password');

// Prepare a SQL statement to update a table
$stmt = $pdo->prepare("UPDATE my_table SET column_name = :new_value WHERE id = :id");

// Bind parameters
$stmt->bindParam(':new_value', $new_value);
$stmt->bindParam(':id', $id);

// Execute the statement
$stmt->execute();
```

Remember to replace 'my_table', 'column_name', 'id', 'new_value', 'username', 'password', and the database connection details with your actual values.

Keywords

SQL injection PDO prepared statements error handling data validation

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