$re = '/\{[^}]+\}/';
$str = '[{
"customerId": 906366,
"subscriberId": 1231244,
"realTimeStatusId": 100,
"realTimeStatusDate": "2017-08-04T09:27:39"
}, {
"customerId": 906235,
"subscriberId": 1231244,
"realTimeStatusId": 101,
"realTimeStatusDate": "2017-08-04T09:27:39"
}, {
"customerId": 906235,
"subscriberId": 1231243,
"realTimeStatusId": 100,
"realTimeStatusDate": "2017-08-04T08:27:39"
}]';
preg_match_all($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