Example sharing of PHP determining the existence of remote files

How does PHP determine whether a remote file exists? This article mainly introduces the method of PHP to determine whether network files exist. It analyzes the skills of PHP to read network files with examples. I hope it will be helpful to everyone.

The example in this article describes how PHP determines whether a network file exists. Share it with everyone for your reference. The specific implementation method is as follows:

$file = "http://www.php.cn/demo/file_exists.zip";
$fileExists = @file_get_contents($file,null,null,-1,1) ? true : false;
if($fileExists){
   echo "File Exists!";
}else{
   echo "Sorry, we couldn't find the file.";
}

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