在php中优化图像时未找到此类文件或目录

我上传的图像和图像我正在优化，但我得到的错误没有这样的文件或目录。我得到下面的代码错误

  $source_img =basename($_FILES["fileToUpload"]["name"]);

如果我写$source_img='assets/img/login bg.jpg'；然后它就开始工作了。我想上传图像，然后优化它

我发现了错误

  Warning: getimagesize(demoimg.JPG): failed to open stream: No such file or directory in C:\xampp\htdocs\... on line 6

  Notice: Undefined variable: image in C:\xampp\htdocs\... on line 17

  Warning: imagejpeg() expects parameter 1 to be resource, null given in C:\xampp\htdocs\... on line 17

HTML

尝试以下php代码：

<?php
    function compress($source, $destination, $quality) {
    $info = getimagesize($source);
    if ($info['mime'] == 'image/jpeg') 
        $image = imagecreatefromjpeg($source);
    elseif ($info['mime'] == 'image/gif') 
        $image = imagecreatefromgif($source);
    elseif ($info['mime'] == 'image/png') 
        $image = imagecreatefrompng($source);

    imagejpeg($image, $destination, $quality);
    return $destination;
}

if(isset($_POST['submit'])){
    $source_img =$_FILES["fileToUpload"]["tmp_name"];
    $source_img_name =basename($_FILES["fileToUpload"]["name"]);
    $temp = explode(".", $source_img_name);
    $newfilename = round(microtime(true)) . '.' . end($temp);
    $destination_img= "assets/$newfilename";

    $d = compress($source_img, $destination_img, 90);
}
?>

---

希望能有帮助。祝你一切顺利

这可能是因为源中没有包含路径，只有basename。您可能需要将文件的整个路径发送到您的函数中，而不仅仅是basename。感谢您回复Rasclatt先生。实际上，我正在从HTML上传图像，并且我正在发送图像的唯一名称。如何发送路径？感谢您回复TutorialBee先生，为我工作。我还需要一个帮助，我们可以将图像大小设置为不超过2MB吗？请查看这些链接：谢谢你的帮助，TutorialsBee先生。向上投我的一票side@NarendraVerma非常感谢：

  function compress($source, $destination, $quality) {
  $info = getimagesize($source);
  if ($info['mime'] == 'image/jpeg') 
  $image = imagecreatefromjpeg($source);

  elseif ($info['mime'] == 'image/gif') 
  $image = imagecreatefromgif($source);

  elseif ($info['mime'] == 'image/png') 
  $image = imagecreatefrompng($source);

  imagejpeg($image, $destination, $quality);
  return $destination;
  }

  if(isset($_POST['submit'])){
  $source_img =basename($_FILES["fileToUpload"]["name"]);
  $temp = explode(".", $source_img);
  $newfilename = round(microtime(true)) . '.' . end($temp);
  $destination_img= "assets/$newfilename";

  $d = compress($source_img, $destination_img, 90);
  }

<?php
    function compress($source, $destination, $quality) {
    $info = getimagesize($source);
    if ($info['mime'] == 'image/jpeg') 
        $image = imagecreatefromjpeg($source);
    elseif ($info['mime'] == 'image/gif') 
        $image = imagecreatefromgif($source);
    elseif ($info['mime'] == 'image/png') 
        $image = imagecreatefrompng($source);

    imagejpeg($image, $destination, $quality);
    return $destination;
}

if(isset($_POST['submit'])){
    $source_img =$_FILES["fileToUpload"]["tmp_name"];
    $source_img_name =basename($_FILES["fileToUpload"]["name"]);
    $temp = explode(".", $source_img_name);
    $newfilename = round(microtime(true)) . '.' . end($temp);
    $destination_img= "assets/$newfilename";

    $d = compress($source_img, $destination_img, 90);
}
?>