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<?php const UNIT_FACTOR = [ 'B' => 1, 'KB' => 1024, 'MB' => 1048576, 'GB' => 1073741824, ]; $array = [ 0 => "100 MB", 4 => "10 MB", 8 => "1GB", 12 => "20 MB", 16 => "250 MB", 20 => "2GB", 24 => "4 MB", 28 => "500 MB", 32 => "50 MB", 36 => "5GB", 40 => "8GB", 44 => "0 MB" ]; uasort( $array, function($a, $b) { sscanf($a, '%f%s', $amountA, $unitA); sscanf($b, '%f%s', $amountB, $unitB); return $amountA * UNIT_FACTOR[$unitA] <=> $amountB * UNIT_FACTOR[$unitB]; } ); var_export($array);
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
array ( 44 => '0 MB', 24 => '4 MB', 4 => '10 MB', 12 => '20 MB', 32 => '50 MB', 0 => '100 MB', 16 => '250 MB', 28 => '500 MB', 8 => '1GB', 20 => '2GB', 36 => '5GB', 40 => '8GB', )
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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