$re = '/(?s)^const {(.*?)}\s*\R(?=const|\Z)/m';
$str = 'const {
b {
description "Create B1"
uri "ms:///a/v1/create-b"
}
c {
description "Create C1"
uri "ms:///a/v1/create-c"
}
d {
description "Create D1"
uri "ms:///a/v1/create-d"
}
}
const {
b {
description "Create B2"
uri "ms:///a/v1/create-b"
}
c {
description "Create C2"
uri "ms:///a/v1/create-c"
}
d {
description "Create D2"
uri "ms:///a/v1/create-d"
}
}
';
preg_match_all($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