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What are some best practices for handling MySQL result resources in PHP to avoid errors like the one mentioned in the warning message?

When handling MySQL result resources in PHP, it's important to properly free up the resources after you're done using them to avoid memory leaks and p...

When should is_dir() and is_file() functions be used to distinguish between directories and files?

When working with file systems in PHP, it is important to distinguish between directories and files. The functions is_dir() and is_file() can be used...

What potential pitfalls should be considered when using fopen() in PHP to access files?

One potential pitfall when using fopen() in PHP is not properly handling errors that may occur when attempting to open a file. It is important to chec...

In what scenarios does it make sense to use exceptions in PHP setters, and when should alternative approaches be considered?

When using exceptions in PHP setters, it makes sense to use them when the setter encounters invalid input or violates certain conditions that should n...

What is the significance of the return value of unlink() and how can it help in debugging file deletion issues?

When deleting a file using the unlink() function in PHP, it is important to check the return value of the function. The unlink() function returns a bo...

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