Read the first 4 words (no. of space not imprtant)

//Read the first 4 words of string independently the number os space between her

$frase = "<pre>My     longest   text to test in my school that is very close to my village</pre>";
preg_match('/My\s+\w+\s+\w+\s+\w+/', $frase, $result);
print "<pre>".$result[0]."</pre>";