Yes, you will most certainly need to have that enabled on your apache/php server. After that, you'll also need to make sure that the place you're getting the file from allows this as well.
A bigger question might be, exactly why do you need to get the file contents, and are you sure this is the most efficient method for what you're wanting to do?
A bigger question might be, exactly why do you need to get the file contents, and are you sure this is the most efficient method for what you're wanting to do?
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