How PHP determines whether a network file exists

This article mainly introduces PHP to judge the existence of network files, examples of the analysis of PHP reading network files, with a certain reference value, the need for friends can refer to the

This article illustrates the way in which PHP determines whether a network file exists. Share to everyone for your reference. The implementation methods are as follows:

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$file = "Http://www.jb51.net/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."

I hope this article will help you with your PHP program design.