Search results for: "custom function"

What are the potential security risks of using the eval() function in PHP?

Using the eval() function in PHP can pose security risks as it allows for the execution of arbitrary code, opening up the possibility of code injectio...

How can one troubleshoot issues related to PHP mail() function not working properly?

To troubleshoot issues related to the PHP mail() function not working properly, you can check the following: 1. Ensure that the correct mail server s...

What are common pitfalls when using the header() function in PHP for redirection?

One common pitfall when using the header() function for redirection in PHP is that it must be called before any output is sent to the browser. If ther...

How can the use of header() function in PHP impact session variables during login processes?

When using the header() function in PHP during login processes, it's important to ensure that the function is not called after any output has been sen...

What is the potential cause of the warning "shuffle() expects parameter 1 to be array, null given" in PHP when using the shuffle function on an array?

The warning "shuffle() expects parameter 1 to be array, null given" occurs when the shuffle function in PHP is called with a null value instead of an...