Turn: Ten extremely useful PHP code snippets

Turn: Ten extremely useful PHP code snippets 1. send text messages to call TextMagicAPI. // IncludetheTextMagicPHPlibrequire ('textmagic-sms-api-php/TextMagicAPI. php to: Ten extremely useful PHP code snippets

1. Send SMS

Call TextMagic API.

// Include the TextMagic PHP librequire('textmagic-sms-api-php/TextMagicAPI.php');// Set the username and password information$username = 'myusername';$password = 'mypassword';// Create a new instance of TM$router = new TextMagicAPI(array('username' => $username,'password' => $password));// Send a text message to '999-123-4567'$result = $router->send('Wake up!', array(9991234567), true);// result:  Result is: Array ( [messages] => Array ( [19896128] => 9991234567 ) [sent_text] => Wake up! [parts_count] => 1 )

? 2. search for an IP address

function detect_city($ip) {        $default = 'UNKNOWN';        if (!is_string($ip) || strlen($ip) < 1 || $ip == '127.0.0.1' || $ip == 'localhost')            $ip = '8.8.8.8';        $curlopt_useragent = 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 (.NET CLR 3.5.30729)';        $url = 'http://ipinfodb.com/ip_locator.php?ip=' . urlencode($ip);        $ch = curl_init();        $curl_opt = array(            CURLOPT_FOLLOWLOCATION  => 1,            CURLOPT_HEADER      => 0,            CURLOPT_RETURNTRANSFER  => 1,            CURLOPT_USERAGENT   => $curlopt_useragent,            CURLOPT_URL       => $url,            CURLOPT_TIMEOUT         => 1,            CURLOPT_REFERER         => 'http://' . $_SERVER['HTTP_HOST'],        );        curl_setopt_array($ch, $curl_opt);        $content = curl_exec($ch);        if (!is_null($curl_info)) {            $curl_info = curl_getinfo($ch);        }        curl_close($ch);        if ( preg_match('{
City : ([^<]*)
}i', $content, $regs) )  {            $city = $regs[1];        }        if ( preg_match('{
State/Province : ([^<]*)
}i', $content, $regs) )  {            $state = $regs[1];        }        if( $city!='' && $state!='' ){          $location = $city . ', ' . $state;          return $location;        }else{          return $default;        }    }

? 3. display the source code of the webpage

  $line) {// loop thru each line and prepend line numbersecho "Line #{$line_num} : " . htmlspecialchars($line) . "
\n";}

? 4. check whether the server uses HTTPS

if ($_SERVER['HTTPS'] != "on") {echo "This is not HTTPS";}else{echo "This is HTTPS";}

? 5. display the number of Facebook fans

function fb_fan_count($facebook_name){    // Example: https://graph.facebook.com/digimantra    $data = json_decode(file_get_contents("https://graph.facebook.com/".$facebook_name));    echo $data->likes;}

? 6. check the main color of the image.

$i = imagecreatefromjpeg("image.jpg");for ($x=0;$x
 
  > 16) & 0xFF;        $g   = ($rgb >>  & 0xFF;        $b   = $rgb & 0xFF;        $rTotal += $r;        $gTotal += $g;        $bTotal += $b;        $total++;    }}$rAverage = round($rTotal/$total);$gAverage = round($gTotal/$total);$bAverage = round($bTotal/$total);
 

? 7. get memory usage information

echo "Initial: ".memory_get_usage()." bytes \n";/* printsInitial: 361400 bytes*/// let's use up some memoryfor ($i = 0; $i < 100000; $i++) {$array []= md5($i);}// let's remove half of the arrayfor ($i = 0; $i < 100000; $i++) {unset($array[$i]);}echo "Final: ".memory_get_usage()." bytes \n";/* printsFinal: 885912 bytes*/echo "Peak: ".memory_get_peak_usage()." bytes \n";/* printsPeak: 13687072 bytes*/

? 8. use gzcompress () to compress data

$string ="Lorem ipsum dolor sit amet, consecteturadipiscing elit. Nunc ut elit id mi ultriciesadipiscing. Nulla facilisi. Praesent pulvinar,sapien vel feugiat vestibulum, nulla dui pretium orci,non ultricies elit lacus quis ante. Lorem ipsum dolorsit amet, consectetur adipiscing elit. Aliquampretium ullamcorper urna quis iaculis. Etiam ac massased turpis tempor luctus. Curabitur sed nibh eu elitmollis congue. Praesent ipsum diam, consectetur vitaeornare a, aliquam a nunc. In id magna pellentesquetellus posuere adipiscing. Sed non mi metus, at laciniaaugue. Sed magna nisi, ornare in mollis in, mollissed nunc. Etiam at justo in leo congue mollis.Nullam in neque eget metus hendrerit scelerisqueeu non enim. Ut malesuada lacus eu nulla bibendumid euismod urna sodales. ";$compressed = gzcompress($string);echo "Original size: ". strlen($string)."\n";/* printsOriginal size: 800*/echo "Compressed size: ". strlen($compressed)."\n";/* printsCompressed size: 418*/// getting it back$original = gzuncompress($compressed);

? 9. use PHP for Whois check

function whois_query($domain) {    // fix the domain name:    $domain = strtolower(trim($domain));    $domain = preg_replace('/^http:\/\//i', '', $domain);    $domain = preg_replace('/^www\./i', '', $domain);    $domain = explode('/', $domain);    $domain = trim($domain[0]);    // split the TLD from domain name    $_domain = explode('.', $domain);    $lst = count($_domain)-1;    $ext = $_domain[$lst];    // You find resources and lists    // like these on wikipedia:    //    // http://de.wikipedia.org/wiki/Whois    //    $servers = array(        "biz" => "whois.neulevel.biz",        "com" => "whois.internic.net",        "us" => "whois.nic.us",        "coop" => "whois.nic.coop",        "info" => "whois.nic.info",        "name" => "whois.nic.name",        "net" => "whois.internic.net",        "gov" => "whois.nic.gov",        "edu" => "whois.internic.net",        "mil" => "rs.internic.net",        "int" => "whois.iana.org",        "ac" => "whois.nic.ac",        "ae" => "whois.uaenic.ae",        "at" => "whois.ripe.net",        "au" => "whois.aunic.net",        "be" => "whois.dns.be",        "bg" => "whois.ripe.net",        "br" => "whois.registro.br",        "bz" => "whois.belizenic.bz",        "ca" => "whois.cira.ca",        "cc" => "whois.nic.cc",        "ch" => "whois.nic.ch",        "cl" => "whois.nic.cl",        "cn" => "whois.cnnic.net.cn",        "cz" => "whois.nic.cz",        "de" => "whois.nic.de",        "fr" => "whois.nic.fr",        "hu" => "whois.nic.hu",        "ie" => "whois.domainregistry.ie",        "il" => "whois.isoc.org.il",        "in" => "whois.ncst.ernet.in",        "ir" => "whois.nic.ir",        "mc" => "whois.ripe.net",        "to" => "whois.tonic.to",        "tv" => "whois.tv",        "ru" => "whois.ripn.net",        "org" => "whois.pir.org",        "aero" => "whois.information.aero",        "nl" => "whois.domain-registry.nl"    );    if (!isset($servers[$ext])){        die('Error: No matching nic server found!');    }    $nic_server = $servers[$ext];    $output = '';    // connect to whois server:    if ($conn = fsockopen ($nic_server, 43)) {        fputs($conn, $domain."\r\n");        while(!feof($conn)) {            $output .= fgets($conn,128);        }        fclose($conn);    }    else { die('Error: Could not connect to ' . $nic_server . '!'); }    return $output;}

? 10. sending PHP errors via Email

 An error ($number) occurred on line$line and in the file: $file.
 $message 
";$email .= "
" . print_r($vars, 1) . "
";$headers = 'Content-type: text/html; charset=iso-8859-1' . "\r\n";// Email the error to someone...error_log($email, 1, 'you@youremail.com', $headers);// Make sure that you decide how to respond to errors (on the user's side)// Either echo an error message, or kill the entire project. Up to you...// The code below ensures that we only "die" if the error was more than// just a NOTICE.if ( ($number !== E_NOTICE) && ($number < 2048) ) {die("There was an error. Please try again later.");}}// We should use our custom function to handle errors.set_error_handler('nettuts_error_handler');// Trigger an error... (var doesn't exist)echo $somevarthatdoesnotexist;

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Original article: http://www.oschina.net/question/28_36708