What are some alternative approaches to comparing and merging CSV files in PHP?

When comparing and merging CSV files in PHP, one alternative approach is to use the `fgetcsv()` function to read the contents of each file into an array, compare the arrays, and then merge the data as needed. This method allows for more control over the comparison and merging process. 

$file1 = fopen('file1.csv', 'r');
$file2 = fopen('file2.csv', 'r');

$data1 = [];
$data2 = [];

while (($row = fgetcsv($file1)) !== false) {
    $data1[] = $row;
}

while (($row = fgetcsv($file2)) !== false) {
    $data2[] = $row;
}

// Compare and merge the data arrays as needed

fclose($file1);
fclose($file2);

Keywords

fgetcsv array_diff array_intersect fputcsv SplFileObject

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