提交以下表單時，我收到此錯誤：

Fatal error: Call to undefined function mysqli_connect() in .... mailing_list_include.php on line 7

這里是mailing_list_include.php文件 - 真正的東西包括訪問數據庫的正確憑據

function doDB() {

global $mysqli;

// connect to server and select database; you may need it

$mysqli = mysqli_connect("localhost", "username",

"password", "db");

// if connection fails, stop script execution

if (mysqli_connect_errno()) {

printf("Connect failed: %s\n", mysqli_connect_error());

exit();

}

}

function emailChecker($email) {

global $mysqli, $check_res;

//check that email is not already in list

$check_sql = "SELECT id FROM SUBSCRIBERS

WHERE email = '".$email."'";

$check_res = mysqli_query($mysqli, $check_sql)

or die(mysqli_error($mysqli));

}

?>

總結

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