1. 发送短信
调用 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) < 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('{<li>City : ([^<]*)</li>}i', $content, $regs) ) {
$city = $regs[1];
}
if ( preg_match('{<li>State/Province : ([^<]*)</li>}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

<?php // display source code
$lines = file('http://google.com/');
foreach ($lines as $line_num => $line) {
// loop thru each line and prepend line numbers
echo "Line #<b>{$line_num}</b> : " . htmlspecialchars($line) . "<br>\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 ($x=0;$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

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 < 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

$string =
"Lorem ipsum dolor sit amet, consectetur
adipiscing elit. Nunc ut elit id mi ultricies
adipiscing. Nulla facilisi. Praesent pulvinar,
sapie