How important is it to refer to the PHP documentation when encountering issues like checking for folder existence?

When checking for folder existence in PHP, it is important to refer to the PHP documentation to ensure that you are using the correct function and parameters. One common way to check for folder existence is by using the `file_exists()` function in combination with the `is_dir()` function. This allows you to determine if a folder exists at a specified path. 

$folderPath = '/path/to/folder';

if (file_exists($folderPath) && is_dir($folderPath)) {
    echo 'Folder exists.';
} else {
    echo 'Folder does not exist.';
}

Keywords

PHP documentation folder existence file_exists is_dir error handling

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