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What are the implications of using outdated PHP functions like session_register and how can they be replaced with modern equivalents like $_SESSION?

Using outdated PHP functions like session_register can lead to security vulnerabilities and compatibility issues with newer versions of PHP. To replac...

What are the potential pitfalls of trying to pass interactive input, like TAN numbers, between PHP and external programs using methods like JavaScript prompts?

The potential pitfalls of passing interactive input like TAN numbers between PHP and external programs using methods like JavaScript prompts include s...

What is the potential issue with using special characters like "+" in file names when using PHP functions like dir()?

Special characters like "+" in file names can cause issues when using PHP functions like dir() because they can be misinterpreted as special character...

How can special characters like umlauts be properly displayed in PHP output, especially in the context of content management systems like Drupal?

Special characters like umlauts can be properly displayed in PHP output by ensuring that the encoding is set correctly. In the context of content mana...

Are there alternative solutions or libraries, like web-socket-js, that can be used to improve WebSocket compatibility in older browsers like IE7?

WebSocket compatibility in older browsers like IE7 can be improved using alternative solutions like Socket.IO, which provides a fallback mechanism for...