Was ist falsch an meiner PHP Bildvalidierung?

Question

Ich habe Probleme herauszufinden, warum es so ist, wenn eine Bildgröße zu groß ist, bekomme ich den Fehler 'Ungültiger Dateityp' 'Hochgeladene Datei ist kein Bild' statt 'Datei ist zu groß' (Das Bild Validierungs-/Upload-Skript Ich habe mich nicht vollständig selbst geschrieben - ich habe den Code gefunden und es für meine Bedürfnisse verwendet. Alles andere scheint gut zu funktionieren. Ich habe auch die folgende Warnung

Warning: getimagesize(): Dateiname nicht in C leer sein: \ xampp \ htdocs \ Elritze \ enthält \ create-post.php on line 75

Hier Mein Code

<?php 
require_once('../dbconnect.php'); 
include_once(INCLUDES_PATH .'functions.php'); 

$body = $_POST["body"]; 
$image = 'image'; 
$user_id = $_SESSION['user_id']; 

if(empty($_FILES[$image]['name'])){ 
$has_image = 0; 
}else{ 
$has_image = 1; 
} 

$postEmpty = 0; 
$imageError = 0; 

if(empty($_FILES[$image]['name']) && empty($body)){ 
$postEmpty = 1; 
die(); 
} 

// validate post 

if($postEmpty == 0 && !empty($body)){ 

    $cleanBody = clean_input($body); 

} 

// validate image (if any) 

if($has_image == 1){ 

    //check if directory exist if not create it 
    if (!file_exists(HOME_PATH ."users/user_".$user_id)) { 
     mkdir(HOME_PATH ."users/user_".$user_id, 0777, true); 
    } 
    if (!file_exists(HOME_PATH ."users/user_".$user_id."/posts")) { 
     mkdir(HOME_PATH ."users/user_".$user_id."/posts", 0777, true); 
    } 
    //Set file upload path 
    $path = "../users/user_".$user_id."/posts/"; //with trailing slash 
    //Set max file size in bytes 
    $max_size = 2000000; 
    //Set default file extension whitelist 
    $whitelist_ext = array('jpeg','jpg','png','gif'); 
    //Set default file type whitelist 
    $whitelist_type = array('image/jpeg', 'image/jpg', 'image/png','image/gif'); 

    // Create an array to hold any output 
    $errors = array(); 

    // Get filename 
    $file_info = pathinfo($_FILES[$image]['name']); 
    $name = $file_info['filename']; 
    $ext = $file_info['extension']; 

    //Check file has the right extension   
    if (!in_array($ext, $whitelist_ext)) { 
     $errors[] = "Invalid file Extension"; 
    } 

    //Check that the file is of the right type 
    if (!in_array($_FILES[$image]["type"], $whitelist_type)) { 
     $errors[] = "Invalid file Type"; 
    } 

    //Check that the file is not too big 
    if ($_FILES[$image]["size"] > $max_size) { 
     $errors[] = "File is too big"; 
    } 

    //If $check image is set as true 
    if (!getimagesize($_FILES[$image]['tmp_name'])) { 
     $errors[] = "Uploaded file is not a valid image"; 
    } 

    //Create full filename including path 
    if ($random_name) { 
    // Generate random filename 
     $tmp = str_replace(array('.',' '), array('',''), microtime()); 

    if (!$tmp || $tmp == '') { 
     $errors[] = "File must have a name"; 
    }  
     $newname = $tmp.'.'.$ext;         
    } else { 
     $newname = $name.'.'.$ext; 
    } 

    //Check if file already exists on server 
    if (file_exists($path.$newname)) { 
     $errors[] = "A file with this name already exists"; 
    } 

    if (count($errors)>0) { 
    //The file has not correctly validated 
     $imageError = 1; 
    } 

// if no errors: 

    // upload image (if any) and retrieve filename 
    if($imageError == 1){ 

     $ret_data = ['items' => $errors, 'responseCode' => 0]; 
     //content in $items must be in UTF-8 
     echo json_encode($ret_data); 
     die(); 

    }else{ 

     //Create full filename including path 
     // Generate random filename 
     $tmp = str_replace(array('.',' '), array('',''), microtime()); 

     if (!$tmp || $tmp == '') { 
      $errors[] = "File must have a name"; 
     }  

     $newname = $tmp.'.'.$ext;         

     //Check if file already exists on server 
     if (file_exists($path.$newname)) { 
      $errors[] = "A file with this name already exists"; 
     } 

     if (count($errors)>0) { 
     //The file has not correctly validated 
      $imageError = 1; 
      $ret_data = ['items' => $errors, 'responseCode' => 0]; 
      //content in $items must be in UTF-8 
      echo json_encode($ret_data); 
      die(); 

     } 
     if (move_uploaded_file($_FILES[$image]['tmp_name'], $path.$newname)) { 

      $uploadSuccesfull = 1; 

     }else { 

      $ret_data = ['items' => $errors, 'responseCode' => 0]; 
      //content in $items must be in UTF-8 
      echo json_encode($ret_data); 
      die(); 
     } 

    } 
} 


// if no errors: 

// save post (with filename if any); if it fails, delete image (if any) 
if($has_image == 1){ 

$query = "INSERT INTO posts 
     (user_id, body, image, has_image, date) 
     VALUES 
     ('$user_id', '$body', '$newname', '$has_image', now())"; 

}else{ 

    $query = "INSERT INTO posts 
     (user_id, body, has_image, date) 
     VALUES 
     ('$user_id', '$body', '$has_image', now())"; 

} 

$result = $db->query($query); 

// send response 

//check to make sure the user was added 
if($db->affected_rows == 1){ 

    $user_id = $_SESSION['user_id']; 

    $post_id = $db->insert_id; 

    $query = "SELECT post_id, body, image, has_image 
      FROM posts 
      WHERE post_id = $post_id 
      LIMIT 1"; 
    $result = $db->query($query); 

    if($result->num_rows == 1){ 
     $row = $result->fetch_assoc(); 
    } 

    $queryuser = "SELECT * 
       FROM users 
       WHERE user_id = $user_id 
       LIMIT 1"; 
    $resultuser = $db->query($queryuser); 
    if($resultuser->num_rows == 1){ 
     $rowuser = $resultuser->fetch_assoc(); 
    } 


if(!empty($row['avatar'])){ $userpic = $row['avatar']; }else{ $userpic = HOME_URL . 'img/avatar.jpg'; } 

    if($row['has_image'] == 1){ 

    $data = "<article class='post'><div class='post-head cf'><a class='userpic' href=''><img src='$userpic' alt='".$rowuser['username']."'></a><a href='' class='username'>".$rowuser['username']."</a></div><img src='users/user_".$rowuser['user_id']."/posts/".$row['image']."' alt=''><div class='post-body'><div class='post-options'><a class='likes' href=''>156 likes</a></div><p><a class='username' href=''>".$rowuser['username']."</a>".$row['body']."</p><hr /><div class='cf'><a class='like hide-text' href='javascript:;'>Like This Post</a><form action='' class='comment'><input type='text' placeholder='Add a comment'></form></div></div></article>"; 
    echo json_encode($data, JSON_UNESCAPED_SLASHES); 

}else{ 

$data = "<article class='post no-img'><div class='post-head cf'><a class='userpic' href=''><img src='$userpic' alt='".$rowuser['username']."'></a><a href='' class='username'>".$rowuser['username']."</a></div><div class='post-body'><p><a class='username' href=''>".$rowuser['username']."</a>".$row['body']."</p><div class='post-options'><a class='likes' href=''>1 like</a></div><hr /><div class='cf'><a class='like hide-text' href='javascript:;'>Like This Post</a><form action='' class='comment'><input type='text' placeholder='Add a comment'></form></div></div></article>"; 
    echo json_encode($data, JSON_UNESCAPED_SLASHES); 

} 
    }else{ 

     $errors[] = "Server Error!"; 

     $ret_data = ['items' => $errors, 'responseCode' => 0]; 
     //content in $items must be in UTF-8 
     echo json_encode($ret_data); 

    } 

die(); 

Answer 1

Es könnte sein, dass die Datei gerade nicht auf den Server hochgeladen wurde.

Überprüfen Sie $_FILES[$image]['error'], um zu sehen, was möglicherweise falsch gelaufen ist.

Siehe die Fehlermeldungen here.

Edit: Nach diesen Zeilen:

$body = $_POST["body"]; 
$image = 'image'; 
$user_id = $_SESSION['user_id']; 

tun:

// check for error greater than zero 
if($_FILES[$image]['error'] > 0) { 
    // something went wrong with the upload, handle the error 
    echo $_FILES[$image]['error']; exit; // as an example to find out what the error was 
} 

Dann http://php.net/manual/en/features.file-upload.errors.php verweist den Grund herauszufinden.