Do I need to escape when interacting with PHP and MySQL?

Is escaping required when using PHP and MySQL for data interaction?

The answer is: escaping is required in some cases to prevent SQL injection attacks.

For example, when using user-input data to splice SQL query statements, you need to use an escape function (such as PDO::quote() in PDO) to escape special characters in the input data to avoid Malicious users execute illegal SQL query statements by entering malicious characters.

In addition, when storing data, the data also needs to be escaped to prevent special characters in the data from damaging the structure of the SQL statement.

In short, in order to ensure data security, it is recommended that when using PHP and MySQL for data interaction, always consider whether escaping operations are needed.

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