PHP PDO Вставка с использованием цикла
У меня проблемы с использованием PDO для вставки нескольких записей в базу данных. Я могу успешно добавить одну запись, но как только я добавлюforeach цикл, это не удается. После прочтения ряда других SO вопросов, касающихся этого, я считаю, что мне нужно «связать» мои переменные, хотя я совершенно запутался в правильном синтаксисе.
Вот оригинальная функция, которую я создал:
<? function addToDatabase () {
//Get All Variables
$timestamp = date("Y-m-d H:i:s");
$schoolName = $_SESSION['schoolName'];
$schoolStreet = $_SESSION['schoolStreet'];
$schoolCity = $_SESSION['schoolCity'];
$schoolState = $_SESSION['schoolState'];
$schoolZip = $_SESSION['schoolZip'];
$schoolContactName = $_SESSION['schoolContactName'];
$schoolContactTitle = $_SESSION['schoolContactTitle'];
$schoolContactPhone = $_SESSION['schoolContactPhone'];
$schoolCsontactEmail = $_SESSION['schoolContactEmail'];
$inputMethod = $_SESSION['inputMethod'];
$studentDataArray = $_SESSION['studentDataArray'];
$studentFirstNameField = $_SESSION['studentFirstNameField'];
$studentLastNameField = $_SESSION['studentLastNameField'];
$studentStreetField = $_SESSION['studentStreetField'];
$studentCityField = $_SESSION['studentCityField'];
$studentStateField = $_SESSION['studentStateField'];
$studentZipcodeField = $_SESSION['studentZipcodeField'];
$studentDOBField = $_SESSION['studentDOBField'];
$studentGenderField = $_SESSION['studentGenderField'];
$studentGradeField = $_SESSION['studentGradeField'];
//Connnect to Database
$host = 'myHost';
$un = 'myUsername';
$pw = 'myPassword';
$db_name = 'myTable';
try {
$conn = new PDO("mysql:host=$host;dbname=$dbName", $un, $pw);
echo 'Connected to database<br>';
$sql = "INSERT INTO studentData (originallyAddedOn, inputMethod, studentFirst, studentLast, studentStreet, studentCity, studentState, studentZip, studentDOB, studentGender, studentGrade, schoolName, schoolStreet, schoolCity, schoolState, schoolZip, schoolContactName, schoolContactTitle, schoolContactEmail, schoolContactPhone) VALUES (:originallyAddedOn, :inputMethod, :studentFirst, :studentLast, :studentStreet, :studentCity, :studentState, :studentZip, :studentDOB, :studentGender, :studentGrade, :schoolName, :schoolStreet, :schoolCity, :schoolState, :schoolZip, :schoolContactName, :schoolContactTitle, :schoolContactEmail, :schoolContactPhone)";
foreach ($studentDataArray as $student){
$q = $conn->prepare($sql);
echo $student[$studentFirstNameField]."<br>";
$q->execute(array( ':originallyAddedOn'=>$timestamp,
':inputMethod'=>$inputMethod,
':studentFirst'=>$student[$studentFirstNameField],
':studentLast'=>$student[$studentLastNameField],
':studentStreet'=>$student[$studentStreetField],
':studentCity'=>$student[$studentCityField],
':studentState'=>$student[$studentStateField],
':studentZip'=>$student[$studentZipField],
':studentDOB'=>$student[$studentDOBField],
':studentGender'=>$student[$studentGenderField],
':studentGrade'=>$student[$studentGradeField],
':schoolName'=>$schoolName,
':schoolStreet'=>$schoolStreet,
':schoolCity'=>$schoolCity,
':schoolState'=>$schoolState,
':schoolZip'=>$schoolZip,
':schoolContactName'=>$schoolContactName,
':schoolContactTitle'=>$schoolContactTitle,
':schoolContactEmail'=>$schoolContactEmail,
':schoolContactPhone'=>$schoolContactPhone));
}
// close the database connection
$dbh = null;
}
catch(PDOException $e) {
echo $e->getMessage();
}
}
$studentDataArray выглядит примерно так:
0 => //student 1
array
[0] => 'Joe' //First
[1] => 'Smith' //Last
[2] => '101 Main St' //Street
[3] => 'Boston' //City
[4] => 'MA' //State
[5] => '01234' //Zip
[6] => '2000-01-01' //Date of Birth
[7] => 'Male' //Gender
[8] => '12' //Grade
1 => //Student 2
array
[0] => 'Jane'
[1] => 'Smith'
[2] => '99 Main St'
[3] => 'Boston'
[4] => 'MA'
[5] => '01234'
[6] => '2000-02-02'
[7] => 'Female'
[8] => '10'
<? function addToDatabase ($dataArray) {
//Connnect to Database
$host = 'myHost';
$un = 'myUsername';
$pw = 'myPassword';
$db_name = 'myTable';
try {
$conn = new PDO("mysql:host=$host;dbname=$dbName", $un, $pw);
echo 'Connected to database<br>';
$sql = "INSERT INTO studentData (originallyAddedOn, inputMethod, studentFirst, studentLast, studentStreet, studentCity, studentState, studentZip, studentDOB, studentGender, studentGrade, schoolName, schoolStreet, schoolCity, schoolState, schoolZip, schoolContactName, schoolContactTitle, schoolContactEmail, schoolContactPhone) VALUES (:originallyAddedOn, :inputMethod, :studentFirst, :studentLast, :studentStreet, :studentCity, :studentState, :studentZip, :studentDOB, :studentGender, :studentGrade, :schoolName, :schoolStreet, :schoolCity, :schoolState, :schoolZip, :schoolContactName, :schoolContactTitle, :schoolContactEmail, :schoolContactPhone)";
$q = $conn->prepare($sql);
foreach ($dataArray as $student){
$a = array (':originallyAddedOn'=>$student['timestamp'],
':inputMethod'=>$student['inputMethod'],
':studentFirst'=>$student['studentFirst'],
':studentLast'=>$student['studentLast'],
':studentStreet'=>$student['studentStreet'],
':studentCity'=>$student['studentCity'],
':studentState'=>$student['studentState'],
':studentZip'=>$student['studentZip'],
':studentDOB'=>$student['studentDOB'],
':studentGender'=>$student['studentGender'],
':studentGrade'=>$student['studentGrade'],
':schoolName'=>$student['schoolName'],
':schoolStreet'=>$student['schoolStreet'],
':schoolCity'=>$student['schoolCity'],
':schoolState'=>$student['schoolState'],
':schoolZip'=>$student['schoolZip'],
':schoolContactName'=>$student['schoolContactName'],
':schoolContactTitle'=>$student['schoolContactTitle'],
':schoolContactEmail'=>$student['schoolContactEmail'],
':schoolContactPhone'=>$student['schoolContactPhone']);
if ($q->execute($a)) {
// Query succeeded.
} else {
// Query failed.
echo $q->errorCode();
}
// close the database connection
$dbh = null;
echo "Insert Complete!";
}
}
catch(PDOException $e) {
echo $e->getMessage();
}
}