$re = '/^(?!.*(?: |^)(?:\+\d|0)(?:[()-]*\d){6,}(?!\S)).*/m';
$str = 'abcd1234567
1234567
123-4567
02221234567
0222-1234567
+862221234567
+86-222-123-4567
+86(222)1234567
86-222-1234567
r 1234567 er
e 123-4567 e
ewq 02221234567 qw
2312 0222-1234567 232
we +862221234567 23
231 +86-222-123-4567 ewe
,,,, +86(222)1234567 sss
ff 86-222-1234567 dd
Some string here with no phone number
a number with 7 and more digits is input
and it starts with 0 or + symbols
and could contain optional symbols "-", "(" and ")"
also enforce whitespace boundaries';
preg_match_all($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