$re = '/(?!\+9936[0-9][\s-]*|86[0-9])\d{2}[\s-]\d{2}[\s-]\d{2}/m';
$str = 'Öý salgysy: Aşgabat şäheri, Bekrewe, Şkolnaýa köçesi, jaý 5 (ýazgyda: Aşgabat şäheri, Büzmeýin etraby, Zemlestroitelnaýa köçesi, jaý 9)
Tel: +99365 70-59-03 ';
$subst = "";
$result = preg_replace($re, $subst, $str);
echo "The result of the substitution is ".$result;
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php