又十個超級有用的PHP代碼片段

2024-05-04 23:39:10

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這篇文章又介紹了十個超級有用的PHP代碼片段，每一個都很精彩，每一個都值得收藏，感興趣的小伙伴們可以參考一下

好東西要大家一起分享，上次分享了十個，這次再來十個超級有用的PHP代碼片段。

1. 發送短信

調用 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. 根據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. 顯示網頁的源代碼

$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. 檢查服務器是否使用HTTPS

if ($_SERVER['HTTPS'] != "on") {

echo "This is not HTTPS";

}else{

echo "This is HTTPS";

}

5. 顯示Facebook粉絲數量

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. 檢測圖片的主要顏色

$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. 獲取內存使用信息

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

*/

8. 使用 gzcompress() 壓縮數據

$string =

"Lorem ipsum dolor sit amet, consectetur

adipiscing elit. Nunc ut elit id mi ultricies

adipiscing. Nulla facilisi. Praesent pulvinar,

sapien vel feugiat vestibulum, nulla dui pretium orci,

non ultricies elit lacus quis ante. Lorem ipsum dolor

sit amet, consectetur adipiscing elit. Aliquam

pretium ullamcorper urna quis iaculis. Etiam ac massa

sed turpis tempor luctus. Curabitur sed nibh eu elit

mollis congue. Praesent ipsum diam, consectetur vitae

ornare a, aliquam a nunc. In id magna pellentesque

tellus posuere adipiscing. Sed non mi metus, at lacinia

augue. Sed magna nisi, ornare in mollis in, mollis

sed nunc. Etiam at justo in leo congue mollis.

Nullam in neque eget metus hendrerit scelerisque

eu non enim. Ut malesuada lacus eu nulla bibendum

id euismod urna sodales. ";

$compressed = gzcompress($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檢查

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",

"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. 通過Email發送PHP錯誤

<?php

// 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 ";

$email .= "<pre>" . print_r($vars, 1) . "</pre>";

$headers = 'Content-type: text/html; charset=iso-8859-1' . "/r/n";

// 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 < 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;