[Oracle] PDO-OCI 的 DSN 連接字串

最近重裝我的開發環境，結果連 oracle 一直連不上，出現了以下幾種訊息，最後是因為我的 TNS listener 沒設好，或是我的 DSN 錯誤，整理出我試過的幾個 DSN 連接字串：

ORA-12154: TNS:could not resolve service name
ORA-06401: NETCMN: invalid driver designator
ORA-12514: TNS:listener could not resolve SERVICE_NAME
ORA-12505: TNS:listener could not resolve SID given in connect descriptor

$DSN="oci:dbname=jaxdb;charset=utf-8";

$DSN="oci:dbname=127.0.0.1:1521/jaxdb;charset=utf-8";

$DSN = "oci:dbname=(
    DESCRIPTION = (
        ADDRESS_LIST = (
            ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521)
        )
    )(CONNECT_DATA=
        (SID = jaxdb)
    )
);charset=utf8";
    
$DSN = "oci:dbname=(
    DESCRIPTION = (
        ADDRESS_LIST = (
            ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521)
        )
    )(CONNECT_DATA=
        (SERVICE_NAME = jaxdb)
    )
);charset=utf8";