This tutorial is about check file or directory is exist or not on server.PHP has file_exists($path) function to check
File is exist or not.
Today I am working on XML file. Where I will convert XML file into Associative array.
So first I need to assured file is exist or not if exist then I will do next step otherwise I will show message file does not exist.
This method also work on directory to check directory EXIST or NOT.This method return true if exist otherwise false.

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if (file_exists($path)) {
    echo "The file $path exists";
} else {
    echo "The file $path does not exist";
}