file_put_contests server error I need help.

Fatal error: Call to undefined function file_put_contests() in /www/zxq.net/n/d/y/ndyouthconference/htdocs/index.php on line 15

This what i get and the php code i am using is

<?php

$fristname = $_POST[‘fristname’];
$lastname = $_POST[‘lastname’];
$pastorname = $_POST[‘pastorname’];
$city = $_POST[‘city’];
$registration = $_POST[‘registration’];
$resgister = $_POST[‘resgister’];
$gender = $_POST[‘gender ‘];

$data= $fristname . “,” . $lastname . “,” . $pastorname . “,” . $city . “,” . $registration . “,” . $resgister . “,” . $gender;
$ndCsv=”ndfile.csv”;
$ndfile=”ndfile.html”;
file_put_contests($ndfile , $data . PHP_EOL, FILE_APPEND);
file_put_contests($ndCsv , $data . PHP_EOL, FILE_APPEND);

echo “registation compelete”;

?>

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