Data sanitization in Wordpress - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is data sanitization in WordPress?

Data sanitization in WordPress means cleaning user input to remove harmful or unwanted code before saving or using it. It helps keep the site safe from attacks.

beginner

Which WordPress function is used to sanitize text fields?

The function sanitize_text_field() cleans text input by stripping tags and removing harmful characters.

beginner

Why should you sanitize data before saving it in WordPress?

Sanitizing data prevents malicious code from entering your database, protects users, and keeps your site secure.

intermediate

What is the difference between sanitization and validation in WordPress?

Sanitization cleans data to make it safe, while validation checks if data meets certain rules or formats before processing.

intermediate

Name two WordPress functions used for sanitizing URLs and emails.

Use esc_url_raw() to sanitize URLs and sanitize_email() to clean email addresses.

Which function should you use to sanitize a plain text input in WordPress?

A sanitize_email()

B wp_kses_post()

C esc_html()

D sanitize_text_field()

sanitize_text_field() is designed to clean plain text inputs by removing tags and harmful characters.

What does data sanitization help prevent in WordPress sites?

A Malicious code injection

B Faster page loading

C Better SEO ranking

D More user comments

Sanitization helps prevent malicious code injection that can harm your site or users.

Which function is best for sanitizing an email address in WordPress?

A esc_url()

B sanitize_text_field()

C sanitize_email()

D wp_strip_all_tags()

sanitize_email() cleans and validates email addresses to ensure they are safe.

What is the main difference between sanitization and validation?

A Sanitization cleans data; validation checks data format

B Sanitization checks data format; validation cleans data

C Both do the same thing

D Sanitization is only for numbers

Sanitization cleans data to make it safe, while validation checks if data fits expected rules.

Which function would you use to allow safe HTML tags in user input?

A sanitize_text_field()

B wp_kses_post()

C sanitize_email()

D esc_url()

wp_kses_post() allows safe HTML tags while removing harmful ones.

Explain why data sanitization is important in WordPress and name three functions used for it.

Think about how bad input can harm your site and which functions clean different types of data.

Describe the difference between sanitization and validation in WordPress with examples.

One makes data safe, the other makes sure data is correct.