What are some common mistakes or oversights that developers may encounter when working with file handling functions in PHP, and how can they be avoided to ensure accurate file operations?

One common mistake is not checking if a file exists before attempting to read or write to it, which can result in errors or unexpected behavior. To avoid this, always use file_exists() function to verify the file's existence before performing any file operations. 

// Check if the file exists before reading or writing
$file_path = 'example.txt';

if (file_exists($file_path)) {
    // Perform file operations here
    $file_contents = file_get_contents($file_path);
    echo $file_contents;
} else {
    echo "File does not exist.";
}

Keywords

file handling functions PHP errors fopen permissions

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