What are some considerations when using CSV files in PHP for data manipulation and retrieval?

When using CSV files in PHP for data manipulation and retrieval, it is important to consider handling large datasets efficiently, ensuring proper error handling for file operations, and sanitizing user input to prevent security vulnerabilities. 

// Example code snippet for reading a CSV file in PHP
$file = 'data.csv';
if (($handle = fopen($file, 'r')) !== false) {
    while (($data = fgetcsv($handle, 1000, ',')) !== false) {
        // Process each row of data here
        print_r($data);
    }
    fclose($handle);
} else {
    echo "Error opening file.";
}

Keywords

CSV files PHP data manipulation retrieval error handling

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