How can one avoid syntax errors and properly handle variables when using is_writable() in PHP?

To avoid syntax errors and properly handle variables when using is_writable() in PHP, ensure that the file path is enclosed in quotes and that the variable containing the path is properly defined. Additionally, check if the file exists before checking its writability to avoid errors. 

$filePath = 'path/to/file.txt';

if (file_exists($filePath) && is_writable($filePath)) {
    echo 'The file is writable.';
} else {
    echo 'The file is not writable or does not exist.';
}

Keywords

syntax errors variables is_writable() error handling PHP

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