Php string operations

Php string operation $ getstr = "id = 189, pc = 0, pt = 0, valide = 1 \ r \ nid = 176, pc = 0, pt = 0, valide = 1 \ r \ nid = 177, pc = 0, pt = 0, valide = 1 \ r \ n "; I want to & nbsp; \ r \ n & nbsp; to get php string operations.

$ Getstr = "id = 189, pc = 0, pt = 0, valide = 1 \ r \ nid = 176, pc = 0, pt = 0, valide = 1 \ r \ nid = 177, pc = 0, pt = 0, valide = 1 \ r \ n ";

I want to divide the string in the form of \ r \ n, get an array, and then take the value in the form of a key-value pair,
Take the value of the first id as an example.
$ Getid = $ arr ["id"]

Please advise me
------ Solution --------------------

$ Getstr = "id = 189, pc = 0, pt = 0, valide = 1 \ r \ nid = 176, pc = 0, pt = 0, valide = 1 \ r \ nid = 177, pc = 0, pt = 0, valide = 1 \ r \ n ";

Foreach (explode ("\ r \ n", $ getstr) as $ row ){
If ($ row ){
Parse_str (strtr ($ row, '&'), $ t );
$ Res [] = $ t;
}
}

Echo $ res [0] ['id'];