Search results for: "superglobal array"

How can regular expressions be used to replace session_register() with $_SESSION[] in PHP scripts?

Regular expressions can be used to search for instances of the deprecated function `session_register()` in PHP scripts and replace them with the moder...

What are common issues when trying to retrieve selected values from a <SELECT> element in PHP and JavaScript?

Common issues when trying to retrieve selected values from a <SELECT> element in PHP and JavaScript include not properly accessing the selected value,...

How does the setting of register_globals impact the handling of form data and variables in PHP scripts?

Setting register_globals to "On" in PHP can lead to security vulnerabilities as it automatically creates global variables from form data, cookies, and...

How can I troubleshoot and debug issues related to cookies not being set or accessed correctly in PHP?

To troubleshoot and debug issues related to cookies not being set or accessed correctly in PHP, you can check if cookies are being set with the `setco...

How can a user upload an image through a form and save it to a server directory in PHP?

To allow a user to upload an image through a form and save it to a server directory in PHP, you can use the $_FILES superglobal to access the uploaded...