Zend Certified PHP Engineer (ZCPE) Practice Test

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What does the function `strip_tags()` do in PHP?

Removes all comments from a string

Removes HTML and PHP tags from a string

The function `strip_tags()` in PHP is designed to remove HTML and PHP tags from a given string. This can be particularly useful when you want to sanitize user input by stripping away any potentially harmful tags that could lead to XSS (Cross-Site Scripting) attacks or other security vulnerabilities. By using `strip_tags()`, developers ensure that they are working with a plain text version of the input, making it safer for processing or displaying on a web page.

For example, if the string contains HTML elements like `<b>This is bold</b>` or PHP opening and closing tags, applying `strip_tags()` would result in just `This is bold`, eliminating the risk associated with rendering HTML or processing any embedded PHP code. This functionality is crucial when handling user-generated content, ensuring that only desired text is processed or displayed.

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Translates special characters into HTML entities

Parses a string and returns an array

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