Câu hỏi phỏng vấn PHP
Câu hỏi

What is the difference between MySQL, MySQLi and PDO?

Câu trả lời

Here is a concise answer to the PHP interview question "What is the difference between MySQL, MySQLi and PDO?":

MySQL vs MySQLi vs PDO

The main differences between the MySQL, MySQLi and PDO extensions in PHP are:

MySQL

  • Oldest MySQL extension, deprecated since PHP 5.5 and removed in PHP 7
  • Procedural API, not object-oriented
  • Does not support prepared statements or multiple statements
  • Vulnerable to SQL injection if not properly escaped

MySQLi

  • Improved MySQL extension with object-oriented and procedural APIs
  • Supports prepared statements, multiple statements, transactions
  • Provides more advanced features like stored procedures
  • Still MySQL-specific, not portable...
middle

middle

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