Understanding HTML Entities
HTML Entities are used to represent reserved characters or characters that are difficult to type. For example, the less-than sign
< is a reserved character in HTML and must be written as < to be rendered correctly in a browser.Encoding for Security
Encoding user-provided content is a critical step in preventing Cross-Site Scripting (XSS) attacks. By converting characters like < and > into their entity equivalents, you ensure that malicious scripts are treated as literal text instead of executable code.
Special Characters
Beyond reserved characters, entities are used for symbols like the copyright sign © (©), the euro sign € (€), and mathematical symbols, ensuring consistent display across different operating systems and browser encodings.