What is the difference between PDO's query() vs execute() ?

Certainly! Understanding the difference between PDO::query() and PDO::execute() is crucial for working with databases in PHP. Here's a detailed explanation:

PDO::query()

• Purpose: The query() method is used to execute an SQL statement directly and returns a result set as a PDOStatement object.
• Usage: It is typically used for SQL statements that do not require any parameters, such as SELECT, SHOW, or DESCRIBE.
• Return Value: It returns a PDOStatement object on success or false on failure.
• Example:
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  $pdo = new PDO('mysql:host=localhost;dbname=testdb', 'username', 'password');
  $stmt = $pdo->query('SELECT * FROM users');
  while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
      print_r($row);
  }

PDO::execute()

• Purpose: The execute() method is used to execute a prepared statement. It is called on a PDOStatement object that has been prepared using the prepare() method.
• Usage: It is used for SQL statements that require parameters, providing a secure way to execute SQL queries with user input, thus preventing SQL injection.
• Return Value: It returns true on success or false on failure.
• Example:
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  $pdo = new PDO('mysql:host=localhost;dbname=testdb', 'username', 'password');
  $stmt = $pdo->pre...