總結19個超實用的PHP代碼片段

發布時間：2021-10-08 11:39:38 來源：億速云閱讀：122 作者：iii 欄目：開發技術

這篇文章主要講解了“總結19個超實用的PHP代碼片段”，文中的講解內容簡單清晰，易于學習與理解，下面請大家跟著小編的思路慢慢深入，一起來研究和學習“總結19個超實用的PHP代碼片段”吧！

1) Whois query using PHP ——利用PHP獲取Whois請求

利用這段代碼，在特定的域名里可獲得whois信息。把域名名稱作為參數，并顯示所有域名的相關信息。

復制代碼代碼如下:

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:
    //
    // <a href="http://de.wikipedia.org/wiki/Whois">http://de.wikipedia.org/wiki/Whois</a>
    //
    $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;
}

2) Text messaging with PHP using the TextMagic API ——使用TextMagic API 獲取PHP Test信息

TextMagic引入強大的核心API，可輕松將SMS發送到手機。該API是需要付費。

復制代碼代碼如下:

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——獲取內存使用率

這段代碼幫助你獲取內存使用率。

復制代碼代碼如下:

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——查看任意網頁源代碼

如果你想查看網頁源代碼，那么只需更改第二行的URL，源代碼就會在網頁上顯示出。

復制代碼代碼如下:

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

5) Create data uri's——創建數據uri

通過使用此代碼，你可以創建數據Uri，這對在HTML/CSS中嵌入圖片非常有用，可幫助節省HTTP請求。

復制代碼代碼如下:

function data_uri($file, $mime) {
$contents=file_get_contents($file);
$base64=base64_encode($contents);
echo "data:$mime;base64,$base64";
}

6) Detect location by IP——通過IP檢索出地理位置

這段代碼幫助你查找特定的IP，只需在功能參數上輸入IP，就可檢測出位置。

復制代碼代碼如下:

7) Detect browser language——查看瀏覽器語言

檢測瀏覽器使用的代碼腳本語言。

復制代碼代碼如下:

8) Check if server is HTTPS——檢測服務器是否是HTTPS

復制代碼代碼如下:

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

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

復制代碼代碼如下:

10.查找Longitudes與Latitudes之間的距離

復制代碼代碼如下:

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:

復制代碼代碼如下:

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

11.完善cURL功能

復制代碼代碼如下:

12.清理用戶輸入

復制代碼代碼如下:

<?php
function cleanInput($input) {

$search = array(
    '@<script[^>]*?>.*?</script>@si',   // Strip out javascript
    '@<[\/\!]*?[^<>]*?>@si',            // Strip out HTML tags
    '@<style[^>]*?>.*?</style>@siU',    // Strip style tags properly
    '@<![\s\S]*?--[ \t\n\r]*>@'         // Strip multi-line comments
);

    $output = preg_replace($search, '', $input);
    return $output;
}
?>
<?php
function sanitize($input) {
    if (is_array($input)) {
        foreach($input as $var=>$val) {
            $output[$var] = sanitize($val);
        }
    }
    else {
        if (get_magic_quotes_gpc()) {
            $input = stripslashes($input);
        }
        $input = cleanInput($input);
        $output = mysql_real_escape_string($input);
    }
    return $output;
}
?>

13.通過IP（城市、國家）檢測地理位置

復制代碼代碼如下:

14.設置密碼強度

復制代碼代碼如下:

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"));
15.檢測瀏覽器語言，只提供可用的$availableLanguages作為數組(‘en', ‘de', ‘es')

復制代碼代碼如下:

16.創建數據URL

復制代碼代碼如下:

function data_uri($file, $mime) {
$contents=file_get_contents($file);
$base64=base64_encode($contents);
echo "data:$mime;base64,$base64";
}

17.創建更加友好的頁面標題SEO URL

輸入示例：$title = “This foo's bar is rockin' cool!”; echo makeseoname($title); //RETURNS: //this-foos-bar-is-rockin-cool

復制代碼代碼如下:

function make_seo_name($title) {
return preg_replace('/[^a-z0-9_-]/i', '', strtolower(str_replace(' ', '-', trim($title))));
}

18.終極加密功能

復制代碼代碼如下:

// f(ucking) u(ncrackable) e(ncryption) function by BlackHatDBL (www.netforme.net)
function fue($hash,$times) {
    // Execute the encryption(s) as many times as the user wants
    for($i=$times;$i>0;$i--) {
        // Encode with base64...
        $hash=base64_encode($hash);
        // and md5...
        $hash=md5($hash);
        // sha1...
        $hash=sha1($hash);
        // sha256... (one more)
        $hash=hash("sha256", $hash);
        // sha512
        $hash=hash("sha512", $hash);

    }
    // Finaly, when done, return the value
    return $hash;
}

19a.Tweeter Feed Runner——使用任意twitter名，可在任意頁面上加載用戶資源。

復制代碼代碼如下:

    public function loadTimeline($user, $max = 20){
        $this->twitURL .= 'statuses/user_timeline.xml?screen_name='.$user.'&count='.$max;
        $ch        = curl_init();
        curl_setopt($ch, CURLOPT_URL, $this->twitURL);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $this->xml = curl_exec($ch);
        return $this;
    }
    public function getTweets(){
        $this->twitterArr = $this->getTimelineArray();
        $tweets = array();
        foreach($this->twitterArr->status as $status){
            $tweets[$status->created_at->__toString()] = $status->text->__toString();
        }
        return $tweets;
    }
    public function getTimelineArray(){
        return simplexml_load_string($this->xml);
    }
    public function formatTweet($tweet){
        $tweet = preg_replace("/(http(.+?))( |$)/","$1$3", $tweet);
        $tweet = preg_replace("/#(.+?)(\h|\W|$)/", "#$1$2", $tweet);
        $tweet = preg_replace("/@(.+?)(\h|\W|$)/", "@$1$2", $tweet);
        return $tweet;
    }

19b. Tweeter Feed Runner——用于在主題中創建文件，比如：example.php

復制代碼代碼如下:

loadTimeline("phpsnips")->getTweets();
foreach($feed as $time => $message){
    echo "<div class='tweet'>".$twitter->formatTweet($message)."<br />At: ".$time."</div>";
}

感謝各位的閱讀，以上就是“總結19個超實用的PHP代碼片段”的內容了，經過本文的學習后，相信大家對總結19個超實用的PHP代碼片段這一問題有了更深刻的體會，具體使用情況還需要大家實踐驗證。這里是億速云，小編將為大家推送更多相關知識點的文章，歡迎關注！

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