Does php have many data function applications?

Is php applicable to many file functions? Is php applicable to many file functions? Asp does not seem to have many applications for file functions, but does not have much to say or use ., There are also a lot of asp file functions. if the system method is used, it's almost the same? Because ASP's default work environment is read-only, is there not much to use, but does PHP's default work php have many file function applications?
Is php applicable to many file functions?
Asp does not seem to have many file functions.

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There is not much to say, and there are also a lot to say.
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There are also many asp file functions
Besides, if the system method is used to block and kill
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Almost?
The default work environment of ASP is read-only, so it is rarely used.
PHP's default working environment is writable, so it is widely used.
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PHP is good.
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PHP is richer than asp