我在下面的vehicles-update.php中收到了这个错误，我还附上了我的vehicle/index.php代码。它出现在我的phpmotors/index.php页面的标题之前。
警告：count((：参数必须是一个数组或对象，该数组或对象在第142行的C:\xammp_124\htdocs\phpmotors\vehicle\index.php中实现Countable显示错误：如果(count($invInfo(<1( ｛
<?php
/***********************************************
* Vehicles Controller
*********************************************/
// Create or access a Session
session_start();
// Get the database connection file
require_once '../library/connections.php';
// Get the database connection file
require_once '../library/functions.php';
// Get the PHP Motors model for use as needed
require_once '../model/main-model.php';
// Get the accounts model
// require_once '../model/classification-model.php';
// Get the accounts model
require_once '../model/vehicles-model.php';
// Get the array of classifications
$classifications = getClassifications();
// var_dump($classifications);
// exit;
// Build a navigation bar using the $classifications array
$navList = '<ul>';
$navList .= "<li><a href='/index.php' title='View the PHP Motors home page'>Home</a></li>";
foreach ($classifications as $classification) {
$navList .= "<li> <a href='/vehicles/?action=classification&classificationName="
.urlencode($classification['classificationName']).
"' title='View our $classification[classificationName] lineup of vehicles'>$classification[classificationName]</a> </li>";
}
$navList .= '</ul>';
$action = filter_input(INPUT_GET, 'action');
if($action == NULL) {
$action = filter_input(INPUT_POST, 'action');
}
switch ($action) {
case 'add-classification':
if (isset($_SESSION['loggedin']) && $_SESSION['clientData']['clientLevel']>1){
include '../view/add-classification.php';
} else {
header('Location: /index.php');
}
break;
case 'add-vehicle':
if (isset($_SESSION['loggedin']) && $_SESSION['clientData']['clientLevel']>1){
include '../view/vehicles-update.php';
} else {
header('Location: /index.php');
}
break;
case 'adding-classification':
// Filter and store the data
$classificationName = filter_input(INPUT_POST, 'classificationName', FILTER_SANITIZE_STRING);
// Check for missing data
if(empty($classificationName)){
$message = '<p>Please provide information for all empty form fields.</p>';
include '../view/add-classification.php';
exit;
}
// Send the data to the model
$regOutcome = regClassification($classificationName);
// Check and report the result
if($regOutcome === 1){
$message = "<p>Thanks for registering $classificationName.</p>";
// Get the array of classifications
$classifications = getClassifications();
// Build a navigation bar using the $classifications array
$navList = '<ul>';
$navList .= "<li><a href='/index.php' title='View the PHP Motors home page'>Home</a></li>";
foreach ($classifications as $classification) {
$navList .= "<li> <a href='/vehicles/?action=classification&classificationName="
.urlencode($classification['classificationName']).
"' title='View our $classification[classificationName] lineup of vehicles'>$classification[classificationName]</a> </li>";
}
$navList .= '</ul>';
include '../view/add-classification.php';
exit;
} else {
$message = "<p>Sorry $classificationName, but the registration failed. Please try again.</p>";
include '../view/add-classification.php';
exit;
}
break;
case 'adding-vehicle':
// Filter and store the data
$invMake = filter_input(INPUT_POST, 'invMake', FILTER_SANITIZE_STRING);
$invModel = filter_input(INPUT_POST, 'invModel', FILTER_SANITIZE_STRING);
$invDescription = filter_input(INPUT_POST, 'invDescription', FILTER_SANITIZE_STRING);
$invImage = filter_input(INPUT_POST, 'invImage', FILTER_SANITIZE_STRING);
$invThumbnail = filter_input(INPUT_POST, 'invThumbnail', FILTER_SANITIZE_STRING);
$invPrice = filter_input(INPUT_POST, 'invPrice', FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION);
$invStock = filter_input(INPUT_POST, 'invStock', FILTER_SANITIZE_NUMBER_INT);
$invColor = filter_input(INPUT_POST, 'invColor', FILTER_SANITIZE_STRING);
$classificationId = filter_input(INPUT_POST, 'classificationId', FILTER_SANITIZE_NUMBER_INT);
// Check for missing data
if(empty($invMake)|| empty($invModel)||empty($invDescription)||empty($invImage)||empty($invThumbnail)||empty($invPrice)||empty($invStock)||empty($invColor)||empty($classificationId) ){
$message = '<p>Please provide information for all empty form fields.</p>';
include '../view/add-vehicle.php';
exit;
}
// Send the data to the model
$regOutcome = regVehicle($invMake, $invModel, $invDescription, $invImage, $invThumbnail, $invPrice, $invStock, $invColor, $classificationId);
// Check and report the result
if($regOutcome === 1){
$message = "<p>Thanks for registering $invModel.</p>";
include '../view/add-vehicle.php';
exit;
} else {
$message = "<p>Sorry $classificationName, but the registration failed. Please try again.</p>";
include '../view/add-vehicle.php';
exit;
}
break;
case 'vehicle':
if (isset($_SESSION['message'])) {
$message = $_SESSION['message'];
}
if (isset($_SESSION['loggedin']) && $_SESSION['clientData']['clientLevel']>1){
$classificationList = buildClassificationList($classifications);
include '../view/vehicle-man.php';
} else {
header('Location: /index.php');
}
break;
case 'mod':
$invId = filter_input(INPUT_GET, 'id', FILTER_VALIDATE_INT);
$invInfo = getInvItemInfo($invId);
if(count($invInfo)<1){
$message = 'Sorry, no vehicle information could be found.';
}
include '../view/vehicle-update.php';
exit;
break;
/* * **********************************
* Get vehicles by classificationId
* Used for starting Update & Delete process
* ********************************** */
case 'getInventoryItems':
// Get the classificationId
$classificationId = filter_input(INPUT_GET, 'classificationId', FILTER_SANITIZE_NUMBER_INT);
// Fetch the vehicles by classificationId from the DB
$inventoryArray = getInventoryByClassification($classificationId);
// Convert the array to a JSON object and send it back
echo json_encode($inventoryArray);
break;
case 'updateVehicle':
$classificationId = filter_input(INPUT_POST, 'classificationId', FILTER_SANITIZE_NUMBER_INT);
$invMake = filter_input(INPUT_POST, 'invMake', FILTER_`enter code here`SANITIZE_STRING);
$invModel = filter_input(INPUT_POST, 'invModel', FILTER_SANITIZE_STRING);
$invDescription = filter_input(INPUT_POST, 'invDescription', FILTER_SANITIZE_STRING);
$invImage = filter_input(INPUT_POST, 'invImage', FILTER_SANITIZE_STRING);
$invThumbnail = filter_input(INPUT_POST, 'invThumbnail', FILTER_SANITIZE_STRING);
$invPrice = filter_input(INPUT_POST, 'invPrice', FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION);
$invStock = filter_input(INPUT_POST, 'invStock', FILTER_SANITIZE_NUMBER_INT);
$invColor = filter_input(INPUT_POST, 'invColor', FILTER_SANITIZE_STRING);
$invId = filter_input(INPUT_POST, 'invId', FILTER_SANITIZE_NUMBER_INT);
if (empty($classificationId) || empty($invMake) || empty($invModel) || empty($invDescription) || empty($invImage) || empty($invThumbnail) || empty($invPrice) || empty($invStock) || empty($invColor)) {
$message = '<p>Please complete all information for the updated item! Double check the classification of the item.</p>';
include '../view/vehicle-update.php';
exit;
}
$updateResult = updateVehicle($invMake, $invModel, $invDescription, $invImage, $invThumbnail, $invPrice, $invStock, $invColor, $classificationId, $invId);
if ($updateResult) {
$message = "<p class='notify'>Congratulations, the $invMake $invModel was successfully updated.</p>";
$_SESSION['message'] = $message;
header('location: /vehicles/index.php?action=vehicle');
exit;
} else {
$message = "<p>Error. The vehicle was not updated.</p>";
include '../view/vehicle-update.php';
exit;
}
break;
case 'del':
$invId = filter_input(INPUT_GET, 'id', FILTER_VALIDATE_INT);
$invInfo = getInvItemInfo($invId);
if (count($invInfo) < 1) {
$message = 'Sorry, no vehicle information could be found.';
}
include '../view/vehicle-delete.php';
exit;
break;
case 'deleteVehicle':
$invMake = filter_input(INPUT_POST, 'invMake', FILTER_SANITIZE_STRING);
$invModel = filter_input(INPUT_POST, 'invModel', FILTER_SANITIZE_STRING);
$invId = filter_input(INPUT_POST, 'invId', FILTER_SANITIZE_NUMBER_INT);
$deleteResult = 'deleteVehicle'($invId);
if ($deleteResult) {
$message = "<p class='notice'>Congratulations the, $invMake $invModel was successfully deleted.</p>";
$_SESSION['message'] = $message;
header('location: /vehicles/index.php?action=vehicle');
exit;
} else {
$message = "<p class='notice'>Error: $invMake $invModel was not
deleted.</p>";
$_SESSION['message'] = $message;
header('location: /vehicles/index.php?action=vehicle');
exit;
}
break;
case 'classification':
$classificationName = filter_input(INPUT_GET, 'classificationName', FILTER_SANITIZE_STRING);
$vehicles = getVehiclesByClassification($classificationName);
if(!count($vehicles)){
$message = "<p class='notice'>Sorry, no $classificationName could be found.</p>";
} else {
$vehicleDisplay = buildVehiclesDisplay($vehicles);
}
include '../view/classification.php';
break;
case 'vehicleDetails':
$invId = filter_input(INPUT_GET, 'invid', FILTER_VALIDATE_INT);
$vehicleData = getInvItemInfo($invId);
$_SESSION['vehicleData'] = $vehicleData;
include '../view/vehicle-detail.php';
break;
default:
$classificationList = buildClassificationList($classifications);
include '../view/vehicle-man.php';
break;
}
看看您的函数getInvItemInfo。如果找不到记录，该函数会返回什么？如果它返回NULL，您将收到一个错误，因为您正在尝试count(NULL)。
尝试使用函数is_null()而不是count()。