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<?php
class DB {
private $_conn;
public function openDB() {
$dsn = "mysql:host=localhost;dbname=news";
$username = "root";
$password = "password";
try {
$this->_conn = new PDO( $dsn, $username, $password );
$this->_conn->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
} catch ( PDOException $e ) {
echo "Connection failed: " . $e->getMessage();
}
}
public function closeDB() {
$this->_conn = null;
}
public function selectData( $myQuery ) {
$rows = $this->_conn->query( $myQuery );
foreach ( $rows as $row ) {
echo "Index: " . $row['id'] . "<br />";
echo "Title: " . $row['title'] . "<br />";
}
}
public function insertData( $tableName ) {
$q = $this->_conn->prepare("DESCRIBE " . $tableName);
$q->execute();
$getFields = $q->fetchAll(PDO::FETCH_COLUMN);
$dbFieldCount = count( $getFields );
$implodedFields = implode( ", :", $getFields );
//$sql = "INSERT INTO " . $tableName . " ( " . implode( ", ", $getFields ) . " ) VALUES ( :" . $implodedFields . " )";
$sql = "INSERT INTO " . $tableName . " VALUES ( :" . $implodedFields . " )";
echo "$sql<br />";
try {
$insert = $this->_conn->prepare( $sql );
foreach ( $getFields as $dbKey => $dbValue ) {
foreach( $_POST as $formKey => $formValue ) {
if ( $dbValue == 'id' ) {
$insert->bindValue( '\":' . $dbValue . '\"', null, PDO::PARAM_INT );
echo "$dbValue<br />";
break;
} else if ( is_int( $formValue ) && $dbValue == $formKey ) {
$insert->bindValue( '\":' . $dbValue . '\"', $formValue, PDO::PARAM_INT );
echo "$formValue<br />";
break;
} else if ( is_string( $formValue ) && $dbValue == $formKey ) {
$insert->bindValue( '\":' . $dbValue . '\"', $formValue, PDO::PARAM_STR );
echo "$formValue<br />";
break;
}
}
}
$insert->execute();
} catch ( PDOException $e ) {
echo "Query failed: " . $e->getMessage();
}
}
}
?>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title></title>
</head>
<body>
<?php
if ($_POST) {
$conn = new DB();
$conn->openDB();
$conn->insertData( 'login' );
$conn->closeDB();
}
?>
<form action="#" method="POST" name="register">
<label for="username">Username</label><br />
<input type="text" id="username" name="username"><br />
<label for="password">Password</label><br />
<input type="password" id="password" name="password"><br />
<label for="email">Email Address</label><br />
<input type="text" id="email" name="email"><br />
<input type="submit" value="Submit" />
</form>
</body>
</html>
The database table only contains the four fields that the query is attempting to insert into. For some reason I get the error: Query failed: SQLSTATE[HY093]: Invalid parameter number: parameter was not defined.
I have troubleshot by echoing the output of the foreach loops and it always returns four items, I'm not sure what parameter isn't defined. I have also played around with including the field names in the $sql string as well as not including them. Same results either way. Please help if you can.
.
