The strip_tags() function is used to remove all HTML and PHP tags from a string. Its basic syntax is as follows:

In PHP, the strip_tags() function is a commonly used tool that helps you remove all HTML and PHP tags from a string, leaving only plain text. This is especially important when handling data from user input or external sources, ensuring data security and readability while preventing malicious script injection or excessive HTML tags from affecting page display.

HTML entities are encoded forms of characters, usually starting with & and ending with ;. Common HTML entities include:

2. Why should we pay attention to character escaping? If user input or dynamic content is output directly, it may cause HTML structure to be corrupted or security vulnerabilities (such as XSS attacks). For example:

How to Properly Escape HTML Entities in PHP Using the get_html_translation_table Function

The basic syntax of the get_meta_tags function is as follows:

When handling user-submitted HTML form data, it is often necessary to process and escape the data to prevent potential security vulnerabilities, especially when interacting with databases or generating HTML content. One common escaping method is using the addcslashes function. However, many developers treat addcslashes as a universal solution and directly apply it to user input. So, is addcslashes suitable for all situations? Are there better alternatives?

1. Basic usage of mb_strcut mb_strcut intercepts strings in bytes. Unlike mb_substr, mb_strcut is intercepted by bytes and is often used to process multi-byte encoding.

In PHP programming, the sprintf function is a very useful tool that formats strings and inserts dynamic values ​​into predefined string templates. Using the sprintf function can make the code more concise and easy to maintain. This article will explore how to use the sprintf function to generate HTML tables and show some practical tips and methods.