<?php
 
$data = [
 'Nokian 185/70 R14 92T HKPL5'
,'Nokian 245/45 R18 100T HKPL 8 Run Flat  XL'
,'Good Year 175/65 R14 82T UG ICE ARCTIC D-STUD'
,'Good Year 205/70 R15 96T UG ICE ARCTIC D-STUD SUV'
];
 
$reg = '|([A-z ]+)\s+(\d+)\/(\d+)\s+R(\d+)\s+(\d+)(\w)\s+(.*)$|';
$names = ['Model', 'Width', 'Height', 'R', 'Load', 'Velocity', 'Comment'];
foreach ($data as $d) {
  preg_match ($reg, $d, $matches);
  for ($i=0; $i != count($names); ++$i)
    echo $names[$i],': ', $matches[$i+1], PHP_EOL;
  echo PHP_EOL;
}

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