Php > Arrays

This gets the http response headers for a given url and returns

This gets the http response headers for a given url and returns
them in an assoc array. i.e. to test if a url exists $array = get_http_headers($url); if($array[result]=200) { }

<?php 

function get_http_headers  ($url,$proto= "HTTP/1.0") { 
          
        if(!eregi( "^http://", $url)) { $url = "http://".$url; } 
        $uri = parse_url($url); 
        $port = ( $uri[ "port"] ? $uri[ "port"] : 80 ); 
        # open a socket to the server 
        $sock = fsockopen($uri[host],$port); 
        if(!$sock) { return(-1); } 
    if (!strlen($uri[path])) {$uri[path] = "/";} 
    $req=sprintf( "HEAD %s %s\n\n", $uri[path], $proto); 

        # send the request 
        fputs($sock, $req); 

        # get the headers 
        while(!feof($sock)): 
                $this_out = fgets($sock,100); 
                $output.= $this_out; 
        endwhile; 
        fclose($sock); 

        # parse them into a hash 
        $hdr=split( "\n",$output); 
        list($array[ "protocol"], $array[ "result"], $array[ "message"]) = split("[[:space:]]+", $hdr[0], 3); 

        for($i=1,$num=count($hdr);$i<$num;$i++) { 
                list($key, $val)=split( ":[[:space:]]*", $hdr[$i],2); 
                $array[strtolower($key)]=$val; 

                } 

        return($array); 
} 
?>