What is the function signature for fgetcsv in PHP and how can it be used to solve issues with text and numeric cells in a CSV file?

When reading a CSV file in PHP using fgetcsv, text and numeric cells may cause issues if they are not handled correctly. Text cells may contain special characters that need to be properly encoded, while numeric cells may lose precision due to PHP's default type conversion. To solve these issues, you can use the fgetcsv function with the appropriate parameters to handle encoding and type conversion. 

// Open the CSV file for reading
$handle = fopen('data.csv', 'r');

// Read and process each row in the CSV file
while (($data = fgetcsv($handle, 0, ',', '"', '"')) !== false) {
    // Handle text cells with special characters
    $encodedData = array_map('utf8_encode', $data);
    
    // Handle numeric cells with precision loss
    $numericData = array_map(function($value) {
        // Check if the value is numeric
        if (is_numeric($value)) {
            // Convert the value to the desired data type
            return (float) $value;
        }
        
        return $value;
    }, $encodedData);
    
    // Process the data as needed
    print_r($numericData);
}

// Close the file handle
fclose($handle);

Keywords

fgetcsv function signature text cells numeric cells CSV file

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