How can PHP developers effectively handle situations where file sizes need to be compared in addition to file names and hashes?

When comparing file sizes in addition to file names and hashes, PHP developers can use the filesize() function to get the size of each file and compare them before proceeding with the comparison of file names and hashes. 

$file1 = 'file1.txt';
$file2 = 'file2.txt';

if (filesize($file1) == filesize($file2)) {
    $hash1 = hash_file('md5', $file1);
    $hash2 = hash_file('md5', $file2);

    if ($hash1 == $hash2) {
        echo "File sizes, names, and hashes match.";
    } else {
        echo "File sizes and names match, but hashes do not match.";
    }
} else {
    echo "File sizes do not match.";
}

Keywords

PHP file size comparison file name hash

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