What is the definition of Attachment.php?

Ah, 'attachment.php' - the digital love letter to your website's database! It's like a secret handshake, but instead of holding hands, you exchange files and memories. It's the part of your site that keeps track of all your user's login sessions, preferences, and maybe even their last seen location if you're a real estate site. It's the part that says, "Hey, sweetheart, I've been keeping an eye on you since you signed up!"

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Now, here's a sentence that might just make your 'attachment.php' heart race a bit: "Just found out my ex's ex-girlfriend was trying to hack into my attachment.php and steal my 'I love you' cookies."