Validating Sanitizing and Escaping User Data « WordPress Codex

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Validating Sanitizing and Escaping User Data

Validating: Checking User Input

Migrated to: https://developer.wordpress.org/apis/security/data-validation/

Sanitizing: Cleaning User Input

Migrated to https://developer.wordpress.org/apis/security/sanitizing/

Escaping: Securing Output

Migrated to https://developer.wordpress.org/apis/security/escaping/

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