又十个超级有用的PHP代码片段

好东西要大家一起分享，上次分享了十个，这次再来十个超级有用的PHP代码片段。

1. 发送短信

调用 TextMagic API。

// 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

$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',$regs) ) {
$state = $regs[1];
}

if( $city!='' && $state!='' ){
$location = $city . ',' . $state;
return $location;
}else{
return $default;
}

}

3. 显示网页的源代码

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

4. 检查服务器是否使用HTTPS

5. 显示Facebook粉丝数量

likes; }

6. 检测图片的主要颜色

for ($x=0;$x<imagesx($i);$x++) {
for ($y=0;$y<imagesy($i);$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

// let's use up some memory
for ($i = 0; $i < 100000; $i++) {
$array []= md5($i);
}

// let's remove half of the array
for ($i = 0; $i < 100000; $i++) {
unset($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. 使用 gzcompress() 压缩数据

$compressed = gzcompress($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. 使用PHP做Whois检查

// 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. 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' . "\r\n";

// Email the error to someone...
error_log($email,1,'[e-mail]',$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;

是不是也很精彩，和一起收藏吧