Question

当我上传jpg或png以外的内容时，它表示照片未更新。请仅上传JPG或PNG照片！但在此之后会有一条跟进消息，产品已成功更新。我想只删除后续消息。

 <?php

        include('session.php');
        $id=$_GET['id'];

        $p=mysqli_query($conn,"select * from product where productid='$id'");
        $prow=mysqli_fetch_array($p);

        $name=$_POST['name'];
        $category=$_POST['category'];
        $supplier=$_POST['supplier'];
        $price=$_POST['price'];
        $qty=$_POST['qty'];

        $fileInfo = PATHINFO($_FILES["image"]["name"]);

        if (empty($_FILES["image"]["name"])){
            $location=$prow['photo'];
        }
        else{
            if ($fileInfo['extension'] == "jpg" OR $fileInfo['extension'] == "png") {
                $newFilename = $fileInfo['filename'] . "_" . time() . "." . $fileInfo['extension'];
                move_uploaded_file($_FILES["image"]["tmp_name"], "../upload/" . $newFilename);
                $location = "upload/" . $newFilename;
            }
            else{
                $location=$prow['photo'];
                ?>
                    <script>
                        window.alert('Photo not updated. Please upload JPG or PNG photo only!');
                    </script>
                <?php
            }
        }

        mysqli_query($conn,"update product set product_name='$name', supplierid='$supplier', categoryid='$category', product_price='$price', photo='$location', product_qty='$qty' where productid='$id'");

        if($qty!=$prow['product_qty']){
            mysqli_query($conn,"insert into inventory (userid,action,productid,quantity,inventory_date) values ('".$_SESSION['id']."','Update Quantity', '$id', '$qty', NOW())");
        }
        ?>
            <script>
                window.alert('Product updated successfully!');
                window.history.back();
            </script>
        <?php

    ?>

Answer 1

有很多方法可以解决这个问题。尝试一种可能的解决方案

<?php

        include('session.php');
        $id=$_GET['id'];

        $p=mysqli_query($conn,"select * from product where productid='$id'");
        $prow=mysqli_fetch_array($p);

        $name=$_POST['name'];
        $category=$_POST['category'];
        $supplier=$_POST['supplier'];
        $price=$_POST['price'];
        $qty=$_POST['qty'];

        $fileInfo = PATHINFO($_FILES["image"]["name"]);
        $flag = 0;

        if (empty($_FILES["image"]["name"])){
            $location=$prow['photo'];
            $flag = 1;
        }
        else{
            if ($fileInfo['extension'] == "jpg" OR $fileInfo['extension'] == "png") {
                $newFilename = $fileInfo['filename'] . "_" . time() . "." . $fileInfo['extension'];
                move_uploaded_file($_FILES["image"]["tmp_name"], "../upload/" . $newFilename);
                $location = "upload/" . $newFilename;
                $flag = 1;
            }
            else{
                $location=$prow['photo'];
                ?>
                    <script>
                        window.alert('Photo not updated. Please upload JPG or PNG photo only!');
                    </script>
                <?php
            }
        }
        if($flag)
        {
        mysqli_query($conn,"update product set product_name='$name', supplierid='$supplier', categoryid='$category', product_price='$price', photo='$location', product_qty='$qty' where productid='$id'");

        if($qty!=$prow['product_qty']){
            mysqli_query($conn,"insert into inventory (userid,action,productid,quantity,inventory_date) values ('".$_SESSION['id']."','Update Quantity', '$id', '$qty', NOW())");
        }
        ?>
            <script>
                window.alert('Product updated successfully!');
                window.history.back();
            </script>
        <?php
}
    ?>

Answer 2

如果条件差不多，请将更新代码移到内部 - 例如

..
..
 if ($fileInfo['extension'] == "jpg" OR $fileInfo['extension'] == "png") {
      $newFilename = $fileInfo['filename'] . "_" . time() . "." . $fileInfo['extension'];
      move_uploaded_file($_FILES["image"]["tmp_name"], "../upload/" . $newFilename);
      $location = "upload/" . $newFilename;

      // write your update query here

      mysqli_query($conn,"update product set product_name='$name', supplierid='$supplier', categoryid='$category', product_price='$price', photo='$location', product_qty='$qty' where productid='$id'");
      if($qty!=$prow['product_qty']){
          mysqli_query($conn,"insert into inventory (userid,action,productid,quantity,inventory_date) values ('".$_SESSION['id']."','Update Quantity', '$id', '$qty', NOW())");
      }
     ?>
      <script>
            window.alert('Product updated successfully!');
            window.history.back();
        </script>
    <?php
  else{
      $location=$prow['photo'];
     ?>
      <script>
       window.alert('Photo not updated. Please upload JPG or PNG photo only!');
       </script>
      <?php
     }
    ?>

或者您可以使用@Nirali建议的标志

Answer 3

    # Please check below image upload code (Please do not forget it :- enctype="multipart/form-data") #


        <!DOCTYPE html>
        <html>
        <body>

        <form action="upload.php" method="post" enctype="multipart/form-data">
            Select image to upload:
            <input type="file" name="fileToUpload" id="fileToUpload">
            <input type="submit" value="Upload Image" name="submit">
        </form>

        </body>
        </html>

 # The "upload.php" file contains the code for uploading a file #

        <?php
        $target_dir = "uploads/";
        $target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
        $uploadOk = 1;
        $imageFileType = strtolower(pathinfo($target_file,PATHINFO_EXTENSION));
        // Check if image file is a actual image or fake image
        if(isset($_POST["submit"])) {
            $check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
            if($check !== false) {
                echo "File is an image - " . $check["mime"] . ".";
                $uploadOk = 1;
            } else {
                echo "File is not an image.";
                $uploadOk = 0;
            }
        }
        ?>

照片上传错误，我的查询有什么问题

3 个答案: