note 42980 added to function.fopen

this smal function can cache local a fopen request. very usefull when you use fopen for http connections (maybe only then) of (more or less) static data. using a proxy might be a solution, but they normaly don't support get-url's ( something.php?query=asdf ) I used it original for a webservice-querying webpage, which reads the WSDL file for accurate parameter-checking... Speeds up this extremly, and because of the cache-expiration still keep it accurate. Use at own risk: no error-handling, might also be a security hole, no locking, ... <? // cache a (http) fopen - with cache-timeout. function cached_fopen($file, $file_mode, $timeout_seconds = 600, $cache_path = "/tmp"){ $debug=false; clearstatcache(); $cache_filename=$cache_path . "/" . urlencode($file) .".cached"; if ($debug) { print "local_cache creation_time =" . @filemtime($cache_filename) . " actual time = " . time() . " timeout = " . $timeout_seconds ."<p>";} if ( ( @file_exists($cache_filename ) and ( ( @filemtime($cache_filename) + $timeout_seconds) > ( time() ) ) ) ){ // ok, file is already cached and young enouth if ($debug) { print "using cached file ($cache_filename) <p>";} } else { if ($debug) { print "cacheing file ($file) to local ($cache_filename)<p>";} // cache file from net to local $f = fopen($file,"r"); $f2 = fopen($cache_filename,"w+"); while ($r=fread($f,8192) ) { fwrite($f2,$r); } fclose($f2); fclose($f); } // ok, point to (fresh) cached file $handle = fopen($cache_filename, $file_mode); return $handle; } ?> usage: <? $handle = cached_fopen("http://example.com/show?xy","r",600) ?> ---- Manual Page -- http://www.php.net/manual/en/function.fopen.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+42980 Delete -- http://master.php.net/manage/user-notes.php?action=delete+42980&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+42980&report=yes Search -- http://master.php.net/manage/user-notes.php