Every programmer and developer loves to discuss their favorite code snippets, especially when PHP developers spend hours coding web pages or creating applications, they know the importance of these codes even more. In order to save coding time, the editor has collected some practical code snippets to help developers improve work efficiency
1) Whois query using PHP——Use PHP to obtain Whois request
Using this code, whois information can be obtained in a specific domain name. Take the domain name as a parameter and display information about all domain names.
代码如下: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:
//
//
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, $domain."rn");
while(!feof($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——Use TextMagic API to obtain PHP Test information
TextMagic introduces powerful core API to easily send SMS to mobile phones. This API requires payment.
The code is as follows:
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 = $router->send('Wake up!', array(9991234567), true);
// result: Result is: Array ( [messages] => Array ( [19896128] => 9991234567 ) [sent_text] => Wake up! [parts_count] => 1 )
3) Get info about your memory usage——Get the memory usage
This code helps you get memory usage.
The code is as follows:
echo "Initial: ".memory_get_usage()." bytes n";
/* prints
Initial: 361400 bytes
*/
// let's use up some memory
for ($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——View the source code of any webpage
If you want to view the source code of the web page, then just change the URL on the second line and the source code will be displayed on the web page.
The code is as follows: $line) {
// loop thru each line and prepend line numbers
echo "Line #{$line_num} : " . htmlspecialchars($line) . "
n";
}
5) Create data uri's——Create data uri's
By using this code you can create data Uri which is useful for embedding images in HTML/CSS and helps save HTTP requests.
The code is as follows:
function data_uri($file, $mime) {
$contents=file_get_contents($file);
$base64=base64_encode($contents);
echo "data:$mime;base64,$base64";
}
6) Detect location by IP——Retrieve the geographical location through IP
This code helps you find a specific IP, just enter the IP on the function parameter and the location will be detected.
代码如下:
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('{
City : ([^<]*)
}i', $content, $regs) ) { $city = $regs[1]; } if ( preg_match(‘{
State/Province : ([^<]*)
}i', $content, $regs) ) { $state = $regs[1]; } if( $city!=” && $state!=” ){ $location = $city . ‘, ‘ . $state; return $location; }else{ return $default; } }
7) Detect browser language——查看浏览器语言
检测浏览器使用的代码脚本语言。
The code is as follows: function get_client_language($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 $default;
}
8) Check if server is HTTPS——Check if server is HTTPS
The code is as follows: if ($_SERVER['HTTPS'] != "on") {
echo "This is not HTTPS";
}else{
echo "This is HTTPS";
}
9) Generate CSV file from a PHP array——Generate .csv file in PHP array
The code is as follows: 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 $contents;
}
10. Find the distance between Longitudes and Latitudes
The code is as follows: function getDistanceBetweenPointsNew($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:
The code is as follows: miles: 2.6025
feet: 13,741.4350
yards: 4,580.4783
kilometers: 4.1884
meters: 4,188.3894
11. Improve cURL function
The code is as follows: function xcurl($url,$ref=null,$post=array(),$ua="Mozilla/5.0 (X11; Linux x86_64; rv:2.2a1pre) Gecko/20110324 Firefox/4.2a1pre",$print =false) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_AUTOREFERER, true);
if(!empty($ref)) {
curl_setopt($ch, CURLOPT_REFERER, $ref);
} }
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
if(!empty($ua)) {
curl_setopt($ch, CURLOPT_USERAGENT, $ua);
} }
if(count($post) > 0){
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
} }
$output = curl_exec($ch);
curl_close($ch);
if($print) {
print($output);
} else {
return $output;
} }
}12.清理用户输入
代码如下:]*?>.*?@si', // Strip out javascript
'@<[/!]*?[^<>]*?>@si', // Strip out HTML tags
'@
]*?>.*?@siU', // Strip style tags properly
'@@' // Strip multi-line comments
);
$output = preg_replace($search, '', $input);
return $output;
}
?>
$val) {
$output[$var] = sanitize($val);
}
}
else {
if (get_magic_quotes_gpc()) {
$input = stripslashes($input);
}
$input = cleanInput($input);
$output = mysql_real_escape_string($input);
}
return $output;
}
?>
13.通过IP（城市、国家）检测地理位置
代码如下:function detect_city($ip) {
$default = 'Hollywood, CA';
if (!is_string($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', $content, $regs) ) { $state = $regs[1]; } if( $city!='' && $state!='' ){ $location = $city . ', ' . $state; return $location; }else{ return $default; } }
14.设置密码强度
代码如下:
function password_strength($string){
$h = 0;
$size = strlen($string);
foreach(count_chars($string, 1) as $v){
$p = $v / $size;
$h -= $p * log($p) / log(2);
}
$strength = ($h / 4) * 100;
if($strength > 100){
$strength = 100;
}
return $strength;
}
var_dump(password_strength("Correct Horse Battery Staple"));
echo "
";
var_dump(password_strength("Super Monkey Ball"));
echo "
";
var_dump(password_strength("Tr0ub4dor&3"));
echo "
";
var_dump(password_strength("abc123"));
echo "
";
var_dump(password_strength("sweet"));
15. Detect browser language and only provide available $availableLanguages as array (‘en’, ‘de’, ‘es’)
The code is as follows: function get_client_language($availableLanguages, $default='en'){
if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
$langs=explode(',',$_SERVER['HTTP_ACCEPT_LANGUAGE']);
//start going through each one
foreach ($langs as $value){
$choice=substr($value,0,2);
if(in_array($choice, $availableLanguages)){
return $choice;
} }
Return $default;
}
16. Create data URL
The code is as follows: function data_uri($file, $mime) {
$contents=file_get_contents($file);
$base64=base64_encode($contents);
echo "data:$mime;base64,$base64";
}
17. Create a more friendly page title SEO URL
Input example: $title = "This foo's bar is rockin' cool!"; echo makeseoname($title); //RETURNS: //this-foos-bar-is-rockin-cool
The code is as follows: function make_seo_name($title) {
Return preg_replace('/[^a-z0-9_-]/i', '', strtolower(str_replace(' ', '-', trim($title))));
}
18. Ultimate Encryption Features
The code is as follows: :// 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 $hash;
}
19a.Tweeter Feed Runner - Use any twitter name to load user resources on any page. 代码如下:
public function loadTimeline($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 $tweet;
}
19b. Tweeter Feed Runner——用于在主题中创建文件，比如：example.php
代码如下:
loadTimeline("phpsnips")->getTweets();
foreach($feed as $time => $message){
echo "";
}
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