How to hide pictures in php

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The operating environment of this tutorial: Windows 7 system, PHP version 5.6, this method is suitable for all brands computer.

php Hide image address

Code:

test.php

<img src="test3.php?path=file/118812060.jpg"> 
<br>this is test!

test3.php

<?php
$path=$_GET["path"];
$cacheimgname=str_replace("/","_",$path);
$localimg="testimg/".$cacheimgname;
 
if ((file_exists($localimg)))
{
$httpurl=$localimg;
}
else
{
$httpurl="http://www.domain.com/".$path;
@copy($httpurl,$localimg);//缓存图片！
}
 
header("Location:$httpurl");
exit;
?>

The actual address is: testimg/file_118812060.jpg

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