上传前获取图像的宽度和高度

Question

I have been trying this code:

$file_tmp = $_FILES['video_imagen']['tmp_name'];
list($width, $height) = getimagesize($file_tmp);

But it gives me an error. I'm not able to fix it

UPDATED

Here you have the PHP code that I have developed. How can I fix it. I have been searching for solutions in different forums...

I get this error

Notice: getimagesize(): Read error! in C:\\wamp\\www\\tapeHD\\include\\php\\database.php on line 282

    public static function SubirVideo($titulo, $video_directorio, $imagen_directorio, $user, $descripcion){
        //ID AUTO INCREMENT
        $sql = "INSERT INTO video(nombre, directorio, imagen, visitas, likes, usuario_id, fecha_subida, descripcion) VALUES ($titulo, $video_directorio, $imagen_directorio, 0, 0, $user, NOW(), $descripcion)";
        $resultado = self::Conexion($sql);
        return $resultado;
    }

    public static function SubirVideoErrores(){
        $error = "";

        if(isset($_POST["boton_upload_video"])){
            $uploadImagen = $_FILES['video_imagen']['name'];
            $tipoImagen = $_FILES['video_imagen']['type'];

            $uploadVideo = $_FILES['video_file']['name'];
            $tipoVideo = $_FILES['video_file']['type'];

            $titulo = $_POST["video_title"];
            $descripcion = $_POST["video_description"];

            $directorio = $_SERVER['DOCUMENT_ROOT']."/tapeHD/include/database/usuarios/".$_SESSION["usuario"]."/videos";

            if($tipoImagen == "image/jpeg"){
                $file_tmp = $_FILES['video_imagen']['tmp_name'];
                list($width, $height) = getimagesize($file_tmp);

                if($_FILES['video_imagen']['size'] < (1024000)){
                    if($width != 320 && $height != 180){
                        $error = "<div id='error_alert'><div class='error_container'><i class='fa fa-times awesome error_close btn'></i><div class='error_text'>La imagen debe de ser 320x180</div></div></div>";
                    } else {
                        if($tipoVideo == "video/mp4"){
                            move_uploaded_file($_FILES['video_file']['tmp_name'], $directorio."/".$uploadVideo);
                            move_uploaded_file($_FILES['video_imagen']['tmp_name'], $directorio."/".$uploadImagen);
                            $video_directorio = "include/database/usuarios/".$_SESSION["usuario"]."/videos/".$uploadVideo;
                            $imagen_directorio = "include/database/usuarios/".$_SESSION["usuario"]."/videos/".$uploadImagen;
                            DataBase::SubirVideo($titulo, $video_directorio, $imagen_directorio, $_SESSION["usuario"], $descripcion);
                            $error = "<div id='error_alert'><div class='error_container'><i class='fa fa-times awesome error_close btn'></i><div class='error_text'>Tu video ha sido subido</div></div></div>";
                        } else {
                            $error = "<div id='error_alert'><div class='error_container'><i class='fa fa-times awesome error_close btn'></i><div class='error_text'>El video debe estar en formato .mp4</div></div></div>";
                        }
                    }
                } else {
                    $error = "<div id='error_alert'><div class='error_container'><i class='fa fa-times awesome error_close btn'></i><div class='error_text'>La imagen pesa demasiado</div></div></div>";
                }
            } else {
                $error = "<div id='error_alert'><div class='error_container'><i class='fa fa-times awesome error_close btn'></i><div class='error_text'>La imagen debe ser .jpg </div></div></div>";
            }
        }
        return $error;  
    }

HTML

            <div class="upload_video_fields">
                <div class="container">
                    <form action="upload.php" method="POST" enctype="multipart/form-data">
                        <div class="video_form left">
                            <input type="text" id="video_title" name="video_title" placeholder="Título del video..." required />
                            <textarea id="video_description" name="video_description" placeholder="Descripción del video..." cols="40" rows="6" aria-required="true" required></textarea>

                        </div>

                        <div class="video_form right">
                            <input type="file" id="video_imagen" name="video_imagen" required />

                            <input type="file" id="video_file" name="video_file" required />
                        </div>
                        <input type="submit" id="boton_upload_video" name="boton_upload_video" class="btn" value="Subir" />
                    </form>
                </div>

                <div class="upload_progress"><div class="bar"></div></div>
            </div>

Answer 1

For multiple file uploads the following is from the manual - just in case you haven't found it. I hope that this provides sufficient guidance when trying to access the variables after upload.

-----------------------------------
Example #1 Uploading multiple files
-----------------------------------
<form action="file-upload.php" method="post" enctype="multipart/form-data">
  Send these files:<br />
  <input name="userfile[]" type="file" /><br />
  <input name="userfile[]" type="file" /><br />
  <input type="submit" value="Send files" />
</form>

When the above form is submitted, the arrays $_FILES['userfile'] , $_FILES['userfile']['name'] , and $_FILES['userfile']['size'] will be initialized.Each of these will be a numerically indexed array of the appropriate values for the submitted files.

For instance, assume that the filenames /home/test/review.html and /home/test/xwp.out are submitted. In this case, $_FILES['userfile']['name'][0] would contain the value review.html , and $_FILES['userfile']['name'][1] would contain the value xwp.out .

Similarly, $_FILES['userfile']['size'][0] would contain review.html 's file size, and so forth.

Answer 2

The sql in the Subirvideo function looks incorrect as none of the values have quotes around them. Technically there is no need for the quotes around the integer values but can do no harm. I added in the exit statement to the sql so that you can check the result though you say it is fine now. The main method SubirVideoErrores has some additional code to resize the uploaded image to the specified max dimensions ( whilst hopefully mantaining the aspect ratio )

public static function SubirVideo( $titulo, $video_directorio, $imagen_directorio, $user, $descripcion ){
    /* note: 
       Ensure that $titulo and $descripcion are properly escaped to avoid issues with quote marks etc
    */
    $sql = "INSERT INTO `video` ( `nombre`, `directorio`, `imagen`, `visitas`, `likes`, `usuario_id`, `fecha_subida`, `descripcion` )
            VALUES
            ( '$titulo', '$video_directorio', '$imagen_directorio', '0', '0', '$user', now(), '$descripcion' )";

    /* Remove if the exit( sql ) if it looks correct */
    exit( $sql );
    $resultado = self::Conexion( $sql );
    return $resultado;
}

public static function SubirVideoErrores( $force_resize=true ){
    /* set the default value of $force_resize to false if you do not wish resizing by default */
    try{
        $error = "";

        $max_width=320;
        $max_height=180;

        /* I added this so I could set a var rather than use a session for testing, ie: $session_usuario='antonio' etc */
        $session_usuario=$_SESSION["usuario"];

        if( isset( $_POST["boton_upload_video"] ) ){

            $titulo = $_POST["video_title"];
            $descripcion = $_POST["video_description"];

            $uploadImagen = $_FILES['video_imagen']['name'];
            $tipoImagen = $_FILES['video_imagen']['type'];
            $uploadVideo = $_FILES['video_file']['name'];
            $tipoVideo = $_FILES['video_file']['type'];

            /* Check for errors */
            $video_upload_error = intval( $_FILES['video_file']['error'] );
            $image_upload_error = intval( $_FILES['video_imagen']['error'] );

            if( $video_upload_error > 0 or $image_upload_error > 0 ){
                exit('There were errors during the upload process');    
            }

            if( !empty( $uploadVideo ) && !empty( $uploadImagen ) ){

               $directorio = $_SERVER['DOCUMENT_ROOT']."/tapeHD/include/database/usuarios/".$session_usuario."/videos";
               #$directorio = 'c:/temp/uploads_testing';

                if( $tipoImagen !== "image/jpeg"){
                    $error = "<div id='error_alert'><div class='error_container'><i class='fa fa-times awesome error_close btn'></i><div class='error_text'>La imagen debe ser de formato .jpg</div></div></div>";
                    print $error;

                } else {

                    list( $width, $height, $type, $attr ) = getimagesize( $_FILES["video_imagen"]["tmp_name"] );

                    if( $force_resize==true ){
                        /* Resize supplied mage to a maximum of 320x180 if it is larger then these sizes */
                        if( $width > $max_width or $height > $max_height ) {
                            if( $width > $height ){
                                /* landscape */
                                $aspect = $max_width / $width;
                                $new_width = $max_width;
                                $new_height = $height * $aspect;
                            } elseif( $width == $height ){
                                /* square */
                                $new_width=$max_height;
                                $new_height=$max_height;
                            } else {
                                /* portrait */
                                $aspect = $max_height / $height;
                                $new_width = $width * $aspect;
                                $new_height = $max_height;  
                            }

                            $uploadedimgpath=$directorio."/".$uploadImagen;

                            move_uploaded_file( $_FILES['video_file']['tmp_name'], $directorio."/".$uploadVideo );
                            move_uploaded_file( $_FILES['video_imagen']['tmp_name'], $uploadedimgpath );                        

                            $image = @imagecreatetruecolor( $new_width, $new_height );
                            $background_color = @imagecolorallocate( $image, 255, 255, 255 );
                            $source = @imagecreatefromjpeg( $uploadedimgpath );

                            @imagecopyresampled( $image, $source, 0, 0, 0, 0, $new_width, $new_height, $width, $height ); 
                            @imagejpeg( $image, $uploadedimgpath, 100 ); 
                            @imagedestroy( $image ); 
                            @imagedestroy( $source );

                            $width=$new_width;
                            $height=$new_height;
                        }
                    } else {
                            $uploadedimgpath=$directorio."/".$uploadImagen;

                            move_uploaded_file( $_FILES['video_file']['tmp_name'], $directorio."/".$uploadVideo );
                            move_uploaded_file( $_FILES['video_imagen']['tmp_name'], $uploadedimgpath );
                    }

                    if( $_FILES['video_imagen']['size'] > 1024000 ){
                        $error = "<div id='error_alert'><div class='error_container'><i class='fa fa-times awesome error_close btn'></i><div class='error_text'>La imagen pesa demasiado</div></div></div>";
                        print $error;

                    } else {

                        if( $width == 320 or $height == 180 ){
                            if( $tipoVideo == "video/mp4" ){

                                $video_directorio = "include/database/usuarios/".$session_usuario."/videos/".$uploadVideo;
                                $imagen_directorio = "include/database/usuarios/".$session_usuario."/videos/".$uploadImagen;

                                DataBase::SubirVideo( $titulo, $video_directorio, $imagen_directorio, $session_usuario, $descripcion );

                                $error = "<div id='error_alert'><div class='error_container'><i class='fa fa-times awesome error_close btn'></i><div class='error_text'>Tu video ha sido subido</div></div></div>";
                                print $error;
                            } else {
                                $error = "<div id='error_alert'><div class='error_container'><i class='fa fa-times awesome error_close btn'></i><div class='error_text'>El video debe estar en formato .mp4</div></div></div>";
                                print $error;
                            }
                        } else {
                            $error = "<div id='error_alert'><div class='error_container'><i class='fa fa-times awesome error_close btn'></i><div class='error_text'>La imagen debe de ser 320x180</div></div></div>";
                            print $error;
                        }
                    }
                }
            }
        }
    }catch( Exception $e ){
        exit( $e->getMessage() );   
    }
}

I have tested this and the image and video both get uploaded fine on my system ( with some path changes of course ) and both are readable. I can watch the uploaed video and view the uploaded image - even those that get resized. Is the video you upload very large?