What is the purpose of the filecheck() function in the PHP code provided?

The filecheck() function in the PHP code provided is used to check if a file exists before attempting to include it. This is important to prevent errors in case the file is missing or cannot be found. By using the file_exists() function within the filecheck() function, we can ensure that the file is present before including it. 

function filecheck($filename) {
    if (file_exists($filename)) {
        include $filename;
    } else {
        echo "File not found.";
    }
}

filecheck("file-to-include.php");

Keywords

filecheck() PHP function file handling error detection

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