如何在base64中上传和转换图像，而不将图像存储在php中 - how to upload and convert image in base64 without storing the image in php

how to upload and convert image in base64 without storing the image in php

本文关键字：图像 php 存储 base64 转换 | 更新日期: 2023-09-27

我可以上传图像并将其保存在任何位置，然后在base64中转换该图像。但是我们如何在不保存的情况下转换base64中的图像。有什么解决方案吗？

$photoTmpPath = $_FILES['filename']['tmp_name'];
$data = file_get_contents($photoTmpPath);
$base64 = base64_encode($data);

如果你想测试：

header('Content-type: image/png');
echo $data;
exit;

如果您有一个通过$_POST管理图像上传的Web窗体。你可以用这个。。

<?php 
if(isset($_POST)){
    $name = $_FILES['file']['name']; 
    $size = $_FILES['file']['size']; 
    $type = $_FILES['file']['type']; 
    $tmp_name = $_FILES['file']['tmp_name']; 
    if(isset($name)){ 
      if(!empty($name)){ 
          $target_path = basename( $_FILES['file']['name']);
          if(move_uploaded_file($_FILES['file']['tmp_name'], $target_path)) {
             echo "The file ".  basename( $_FILES['file']['name'])." has been uploaded";
             $im = file_get_contents($_FILES['file']['name']);
             $imdata = base64_encode($im);   
             var_dump($im);
             unlink($_FILES['file']['name']);
          }
        }else{ 
            echo 'Please choose a File'; 
        } 
    }
}
?> 
<form method="POST" enctype="multipart/form-data"> 
<input type="file" name="file"> 
<input type="submit" value="Upload"> 
</form>