In what scenarios would it be beneficial to calculate CRC sum of a file in PHP compared to other methods?

Calculating the CRC sum of a file in PHP can be beneficial when you need to verify the integrity of the file during transmission or storage. This checksum can be compared with the CRC sum calculated at the receiving end to ensure that the file has not been corrupted. It is a quick and efficient method for detecting errors in data transmission. 

<?php
$file = 'example.txt';

// Calculate CRC sum of the file
$crc = hash_file('crc32b', $file);

echo "CRC sum of $file: $crc";
?>

Keywords

CRC sum file calculation PHP scenarios comparison

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