$re = '/^(0|\+33){1} {0,1}(6|7){1}(( |.){0,1}[0-9]{2}){4}/mi';
$str = '0682928919
0501468879
0715448664
01656565656656
03 02 021 02
+33682928919
06.82.92.89.19
06 82 92 89 19
+336.82.92.89.19
+33 682928919';
preg_match_all($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