php,或js如何实现点击图片另存为

Question

点击图片，就直接下载，而不是在浏览器中打开

Answer 1

JS：

使用JS实现单击连接保存图片2种形式都可以第一种：

<script>

function SaveAs5(imgURL)

{

var oPop = window.open(imgURL,"","width=1, height=1, top=5000,
left=5000");

for(; oPop.document.readyState != "complete"; )

{ if (oPop.document.readyState == "complete")break; }

oPop.document.execCommand("SaveAs"); oPop.close();

}

</script>

<img src="t_screenshot_17616.jpg" id="DemoImg" border="0"
onclick="SaveAs5(this.src)">

 第二种：

<script> function SaveAs5(imgURL)

{

var oPop = window.open(imgURL,"","width=1, height=1, top=5000,
left=5000");

for(; oPop.document.readyState != "complete"; )

{ if (oPop.document.readyState == "complete")break; }

oPop.document.execCommand("SaveAs"); oPop.close();

 }

</script>

 <img src="../t_screenshot_17616.jpg" id="DemoImg" border="0">
<a href="#" onclick="SaveAs5(document.getElementByIdx_x('DemoImg').src)">
点击这里下载图片 </a>

PHP:

<a href="test.php?url=uploads/1112/1-11122212201R28.jpg">下载</a> 

test.php文件代码：

<?php 

$dir=$_GET['url']; //获取图片地址$file = fopen($dir,"r"); // 打开文件  

Header("Content-type: application/octet-stream"); 

Header("Accept-Ranges: bytes"); 

Header("Accept-Length: ".filesize($dir)); 

Header("Content-Disposition: attachment; filename=" . $dir); 

echo fread($file,filesize($dir));

 fclose($file); 

exit; 

?> 

Answer 2

在html中的图片，不用其他设置，右键点击图片就可以另存的。

Answer 3

用PHP可以。
可以在<img>中写个链接，连接到一个下载图片的PHP。追问

php怎么写

追答

";
echo "";
echo "";
}
?>

本回答被网友采纳

Answer 4

这个是浏览器的功能，和你写的语言无关！

Answer 5

<script>
function SaveAs5(imgURL)
{
var oPop = window.open(imgURL,"","width=1, height=1, top=5000, left=5000");
for(; oPop.document.readyState != "complete"; )
{ if (oPop.document.readyState == "complete")break; }
oPop.document.execCommand("SaveAs"); oPop.close();
}
</script>
<img src="t_screenshot_17616.jpg" id="DemoImg" border="0" onclick="SaveAs5(this.src)">本回答被网友采纳