PHP PDO Insert Using Loop
Ich habe Probleme mit PDO, um mehrere Datensätze in eine Datenbank einzufügen. Ich kann erfolgreich einen einzelnen Datensatz hinzufügen, aber sobald ich den hinzufügeforeach Schleife schlägt fehl. Nachdem ich eine Reihe anderer SO-Fragen dazu gelesen habe, glaube ich, dass ich meine Variablen "binden" muss, obwohl ich hinsichtlich der richtigen Syntax völlig verwirrt bin.
Hier ist die ursprüngliche Funktion, die ich erstellt habe:
<? 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 $e->getMessage();
}
}
Das$studentDataArray sieht ungefähr so aus:
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();
}
}