dongqin6926 2017-09-30 12:28
浏览 41

上传图片并将其显示给用户

I'm trying to upload a file to a server then display it to the user. I'm having difficulties to display the image to the user.

If you could provide code that helps me out to display the image to the user. The code should fit in the php file right under //Display image here <---------

html file

<html>
        <body>
            <form method="post" enctype="multipart/form-data" action="server.php">
            <input type="file" name="fileToUpload" id="fileToUpload" size="35">
            <br>
            <br>
            <input type="submit" value="Upload" name="upload">
        </body>
    </html>

php file

<?php

        if(isset($_FILES["fileToUpload"])){
            $file = $_FILES['fileToUpload'];

            $fileName = $_FILES["fileToUpload"]["name"];
            $fileTmpName = $_FILES["fileToUpload"]["tmp_name"];
            $fileSize = $_FILES["fileToUpload"]["size"];
            $fileError = $_FILES["fileToUpload"]["error"];
            $fileType = $_FILES["fileToUpload"]["type"];

            $fileExt = explode('.', $fileName);
            $fileActualExt = strtolower(end($fileExt));

            $allowed = array('jpg', 'jpeg', 'png');

            if(in_array($fileActualExt, $allowed)){
                //Image code
                if($fileError === 0){
                    if($fileSize < 500000){

                        $fileDestination = 'uploads/'.$fileName;
                        move_uploaded_file($fileTmpName, $fileDestination);
                        header("Location: server.php?uploadsuccess");
                        //Display image here <----------

                    }else{
                        echo "Your file is too big!";
                    }
                }else{
                    echo "There was an error while uploading your file!";
                }
            }else{

                if(isset($_FILES["fileToUpload"])){
                    $file = $_FILES["fileToUpload"]["name"];
                    echo "File: ".$file;
                }
            }

        }

    ?>
  • 写回答

3条回答 默认 最新

  • doucu7330 2017-09-30 12:38
    关注

    first you have to change .html file to .php and note that i have renamed file as index.php

    <html>
        <body>
    <?php   if(isset($_GET['filename'])){ ?>
        <img src="<?php echo $_GET['filename']; ?>" />
<?php   } ?>
            <form method="post" enctype="multipart/form-data" action="server.php">
            <input type="file" name="fileToUpload" id="fileToUpload" size="35">
            <br>

            <br>
            <input type="submit" value="Upload" name="upload">
        </body>
    </html>

    server.php

    <?php

        if(isset($_FILES["fileToUpload"])){
            $file = $_FILES['fileToUpload'];

            $fileName = $_FILES["fileToUpload"]["name"];
            $fileTmpName = $_FILES["fileToUpload"]["tmp_name"];
            $fileSize = $_FILES["fileToUpload"]["size"];
            $fileError = $_FILES["fileToUpload"]["error"];
            $fileType = $_FILES["fileToUpload"]["type"];

            $fileExt = explode('.', $fileName);
            $fileActualExt = strtolower(end($fileExt));

            $allowed = array('jpg', 'jpeg', 'png');

            if(in_array($fileActualExt, $allowed)){
                //Image code
                if($fileError === 0){
                    if($fileSize < 500000){

                        $fileDestination = 'uploads/'.$fileName;


                        move_uploaded_file($fileTmpName, $fileDestination);
                    //    header("Location: server.php?uploadsuccess");
                        //Display image here <----------
header("Location:index.php?filename=$fileDestination");

                    }else{
                        echo "Your file is too big!";
                    }
                }else{
                    echo "There was an error while uploading your file!";
                }
            }else{

                if(isset($_FILES["fileToUpload"])){
                    $file = $_FILES["fileToUpload"]["name"];
                    echo "File: ".$file;
                }
            }

        }

    ?>

    I have done using php but better option is using ajax call .just google it you will get man examples

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