php Ten super useful PHP code snippets

Ten super useful php code snippets

[PHP] code

1. Send SMS
Call TextMagic API.

// Include the TextMagic PHP lib
require('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. 根据IP查找地址

function detect_city($ip) {

$default = 'UNKNOWN';

if (!is_string($ip) || strlen($ip) $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. 显示网页的源代码


$lines = file('http://google.com/');
foreach ($lines as $line_num => $line) {
// loop thru each line and prepend line numbers
echo "Line #{$line_num} : " . htmlspecialchars($line) . "n";
}

4. 检查服务器是否使用HTTPS

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

5. 显示Faceboo**丝数量

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. 检测图片的主要颜色

$i = imagecreatefromjpeg("image.jpg");

for ($x=0;$xfor ($y=0;$y$rgb = imagecolorat($i,$x,$y);
$r = ($rgb >> 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. 获取内存使用信息

echo"Initial: ".memory_get_usage()." bytes n";
/* prints
Initial: 361400 bytes
*/
// http://www.baoluowanxiang.com/
// let's use up some memory
for ($i = 0; $i $array []= md5($i);
}

// let's remove half of the array
for ($i = 0; $i unset($array[$i]);
}

echo"Final: ".memory_get_usage()." bytes n";
/* prints
Final: 885912 bytes
*/

echo"Peak: ".memory_get_peak_usage()." bytes n";
/* prints
Peak: 13687072 bytes
*/

8. Use gzcompress() to compress data

$string =
 "The pain itself should be real, it will be followed
adipiscing elit. Now as elit it my ultricies
adipiscing. No facilisi. Praesent pulvinar,
sapien or feugiat vestibulum, no dui price orci,
not ultricies lacus
sit amet adipiscing
the price of ullamcorper
sed turpis
to decorate a now
Nullam in neque methres hendrerit
eu no for. Ut malesuada lacus nulla drinkum
id euismod urna. ";

$compressed = gzcompress($string);

echo "Original size: ". strlen($string)."n";
/* prints
Original size: 800
*/

echo "Compressed size: ". strlen($compressed)."n";
/* prints
Compressed size: 418
*/

// getting it back
$original = gzuncompress($compressed);

9. Using PHP 做Whois 免费

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" => "whois.nic.name" => "whois.nic.name" => .internic.net",
"gov" => "whois.nic.gov",
"edu" => "whois.internic.net",
"mil" => "rs.internic.net" ,
"int" => "whois.iana.org",
"ac" => "whois.uaenic.ae" => "whois.ripe.net",
"au" => "whois.aunic.net" => "whois.dns.be" => "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, $domain."rn ");
while(!feof($conn)) {
$output .= fgets($conn,128);
}
fclose($conn);
}
else { die('Error: Could not connect to ' . $nic_server '!'); }

return $output;
}

10. 通过Email发送PHP错误


// Our custom error handler
function nettuts_error_handler($number, $message, $file, $line, $vars){
$email = "
An error ($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' . "rn";

// 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 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;

php, PHP