note 86862 deleted from function.fsockopen by cmb

Note Submitter: Doug ---- [NOTE BY danbrown AT php DOT net: Updated version. Contains author-submitted bug fixes.] Here is a way to get an array of cities / states for any zip code anywhere in the US. This example uses a $_GET variable to specify which zip code, but you can get it from any source you wish. This will return actual and acceptable zip code cities (according to USPS), but can be easily modified to include just the actual city. <?php if($_GET['zip']) { if(!($fp = fsockopen('zip4.usps.com', 80, $errno, $errstr))) echo 'Could not connect to USPS! Error number: ' . $errno . '(' . $errstr . ')'; else { $poststring = "GET /zip4/zcl_3_results.jsp?zip5=" . $_GET['zip'] . " HTTP/1.0\r\n" . "Connection: close\r\n\r\n"; fputs($fp, $poststring); $buffer = ''; while(!feof($fp)) $buffer .= fgets($fp, 128); fclose($fp); preg_match('/Actual City name(.*)/s', $buffer, $match); $temp = explode('Not Acceptable', $match[1]); // Capture city/state combination for all valid cities preg_match_all('/headers="pre">(?:<b>)?([\w|\s]+), (\w+)/', $temp[0], $acceptable, PREG_SET_ORDER); $values = array(); foreach($acceptable as $value) $values[] = array ( 'city' => $value[1], 'state' => $value[2] ); if(count($values) == 0) echo 'Zip could not be found in the database!'; } } else echo 'Please specify a zip!'; ?>