19个超实用的PHP代码片段

1) Whois query using PHP ——利用PHP获取Whois请求

TextMagic引入强大的核心API，可轻松将SMS发送到手机。该API是需要付费。

代码如下:

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 )  

3) Get info about your memory usage——获取内存使用率

这段代码帮助你获取内存使用率。

代码如下:

echo "Initial: ".memory_get_usage()." bytes \n";  
/* prints 
Initial: 361400 bytes 
*/  

// 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 
*/  

4) Display source code of any webpage——查看任意网页源代码

检测浏览器使用的代码脚本语言。

代码如下:

function get_client_language($availableLanguages, $default='en'){  
    if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {  
        $langs=explode(',',$_SERVER['HTTP_ACCEPT_LANGUAGE']);  

        foreach ($langs as $value){  
            $choice=substr($value,0,2);  
            if(in_array($choice, $availableLanguages)){  
                return $choice;  
            }  
        }  
    }   
    return $default;  
}  

8) Check if server is HTTPS——检测服务器是否是HTTPS

代码如下:

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

9) Generate CSV file from a PHP array——在PHP数组中生成.csv 文件

代码如下:

function generateCsv($data, $delimiter = ',', $enclosure = '"') {  
   $handle = fopen('php://temp', 'r+');  
   foreach ($data as $line) {  
           fputcsv($handle, $line, $delimiter, $enclosure);  
   }  
   rewind($handle);  
   while (!feof($handle)) {  
           $contents .= fread($handle, 8192);  
   }  
   fclose($handle);  
   return $contents;  
}  

10.查找Longitudes与Latitudes之间的距离

代码如下:

function getDistanceBetweenPointsNew($latitude1, $longitude1, $latitude2, $longitude2) {  
    $theta = $longitude1 - $longitude2;  
    $miles = (sin(deg2rad($latitude1)) * sin(deg2rad($latitude2))) + (cos(deg2rad($latitude1)) * cos(deg2rad($latitude2)) * cos(deg2rad($theta)));  
    $miles = acos($miles);  
    $miles = rad2deg($miles);  
    $miles = $miles * 60 * 1.1515;  
    $feet = $miles * 5280;  
    $yards = $feet / 3;  
    $kilometers = $miles * 1.609344;  
    $meters = $kilometers * 1000;  
    return compact('miles','feet','yards','kilometers','meters');   
}  

$point1 = array('lat' => 40.770623, 'long' => -73.964367);  
$point2 = array('lat' => 40.758224, 'long' => -73.917404);  
$distance = getDistanceBetweenPointsNew($point1['lat'], $point1['long'], $point2['lat'], $point2['long']);  
foreach ($distance as $unit => $value) {  
    echo $unit.': '.number_format($value,4).'  
';  
} 

The example returns the following:

代码如下:

miles: 2.6025  
feet: 13,741.4350  
yards: 4,580.4783  
kilometers: 4.1884  
meters: 4,188.3894

var_dump(password_strength("Correct Horse Battery Staple"));
echo "<br>";
var_dump(password_strength("Super Monkey Ball"));
echo "<br>";
var_dump(password_strength("Tr0ub4dor&3"));
echo "<br>";
var_dump(password_strength("abc123"));
echo "<br>";
var_dump(password_strength("sweet"));