How does PHP determine whether it is a folder or a file?

#How does PHP determine whether it is a folder or a file?

1. Use the "is_file()" function to determine whether it is a file. If it is a file, the return result is true, otherwise it is false;

Usage example

Result

bool(true) bool(false)

2. Use the "is_dir()" function to determine whether it is a directory, and the return result is true or false.

Usage example

Result

bool(false) bool(false) bool(true)

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