<?php
 
$matches=[" Liverpool - Chelsea", "=Liverpool - Chelsea", "'Liverpool - Chelsea", "Liverpool - Chelsea", "Liverpool- Chelsea", "Liverpool -Chelsea", "Liverpool-Chelsea", "Liverpool-Chelsea ", "Lechia Gdańsk- Odra Wodzisław", "Szombierki Bytom  -    ŁKS Łódź"];
 
foreach ($matches as $member) {
    echo '"' . $member . '" ' . (preg_match('/^[\w\d][\w\d ]{2,}[ ]*-[ ]*[\w\d ]{2,}[\w\d]$/u', $member) ? 'true' : 'false') . "\n";
}
 

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