Check If a URL is Valid or Not
function is_valid_url ( $url ) $url = @parse_url($url); if ( ! $url) { return false; } $url = array_map('trim', $url); $url['port'] = (!isset($url['port'])) ? 80 : (int)$url['port']; $path = (isset($url['path'])) ? $url['path'] : ''; if ($path == ''){ $path = '/'; } $path .= ( isset ( $url['query'] ) ) ? "?$url[query]" : ''; if ( isset ( $url['host'] ) AND $url['host'] != gethostbyname ( $url['host'] ) ){ if ( PHP_VERSION >= 5 ){ $headers = get_headers("$url[scheme]://$url[host]:$url[port]$path"); }else{ $fp = fsockopen($url['host'], $url['port'], $errno, $errstr, 30); if ( ! $fp ){ return false; } fputs($fp, "HEAD $path HTTP/1.1\r\nHost: $url[host]\r\n\r\n"); $headers = fread ( $fp, 128 ); fclose ( $fp ); } $headers = ( is_array ( $headers ) ) ? implode ( &