PHP is commonly used to perform:
- system functions. It can create, open, read, write, and close to files on a system.
- handling forms. It can help. Collect data from files, save data to a file, send data through email, return data to the user, etc.
- tasks that involve adding, deleting, and modify elements within your database
- accessing cookies variables and set cookies.
- user restriction to access some pages of your website
- data encryption
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