$re = '/(\()?(\+36|0036|06)?(\))?(-| )?(1|20|2[2-9]|3[0-7]|40|42|4[4-9]|5[2-7]|59|60|62|63|66|68|69|70|7[2-9]|80|8[2-5]|8[7-9]]|90|9[2-9])([\\\\\/ ])?(\d{6,7}|\d{3}(-| )\d{3,4}|\d{3,4}(-| )\d{3})/';
$str = '205032935
305032935
705032935
06303335554
+36205032935
0036205032935
(06)-30\\3333333
(06)-30\\3333-333
(06)-303333333
(+36)303333333
(+36)-30\\333 3333
(+36)-30/3333333
(0036)-30\\333-3333
(0036)-30\\3333 333
(0036) 303333333
0036 74 555 556
+3674 555556
0674555 556
(06)74555556
(0036)-74/555-556
';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
// Print the entire match result
var_dump($matches);
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