PHP10段常用功能代码

时间:2022-07-23
本文章向大家介绍PHP10段常用功能代码,主要内容包括其使用实例、应用技巧、基本知识点总结和需要注意事项,具有一定的参考价值,需要的朋友可以参考一下。

1、使用PHP Mail函数发送Email

$to = "viralpatel.net@gmail.com";

			$subject = "VIRALPATEL.net";

			$body = "Body of your message here you can use HTML too. e.g. ﹤br﹥ ﹤b﹥ Bold ﹤/b﹥";

			$headers = "From: Peterrn";

			$headers .= "Reply-To: info@yoursite.comrn";

			$headers .= "Return-Path: info@yoursite.comrn";

			$headers .= "X-Mailer: PHP5n";

			$headers .= 'MIME-Version: 1.0' . "n";

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

			mail($to,$subject,$body,$headers);

			?﹥

2、PHP中的64位编码和解码

function base64url_encode($plainText) {

			$base64 = base64_encode($plainText);

			$base64url = strtr($base64, '+/=', '-_,');

			return $base64url;

			}

			 

			function base64url_decode($plainText) {

			$base64url = strtr($plainText, '-_,', '+/=');

			$base64 = base64_decode($base64url);

			return $base64;

			}

3、获取远程IP地址

function getRealIPAddr()

			{

			if (!empty($_SERVER['HTTP_CLIENT_IP'])) //check ip from share internet

			{

			$ip=$_SERVER['HTTP_CLIENT_IP'];

			}

			elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) //to check ip is pass from proxy

			{

			$ip=$_SERVER['HTTP_X_FORWARDED_FOR'];

			}

			else

			{

			$ip=$_SERVER['REMOTE_ADDR'];

			}

			return $ip;

			}

4、 日期格式化

function checkDateFormat($date)

			{

			//match the format of the date

			if (preg_match ("/^([0-9]{4})-([0-9]{2})-([0-9]{2})$/", $date, $parts))

			{

			//check weather the date is valid of not

			if(checkdate($parts[2],$parts[3],$parts[1]))

			return true;

			else

			return false;

			}

			else

			return false;

			}

5、验证Email

$email = $_POST['email'];

			if(preg_match("~([a-zA-Z0-9!#$%&'*+-/=?^_`{|}~])@([a-zA-Z0-9-]).

			([a-zA-Z0-9]{2,4})~",$email)) {

			echo 'This is a valid email.';

			} else{

			echo 'This is an invalid email.';

			}

6、在PHP中轻松解析XML

//this is a sample xml string

$xml_string="﹤?xml version='1.0'?﹥

﹤moleculedb﹥

﹤molecule name='Benzine'﹥

﹤symbol﹥ben﹤/symbol﹥

﹤code﹥A﹤/code﹥

﹤/molecule﹥

﹤molecule name='Water'﹥

﹤symbol﹥h2o﹤/symbol﹥

﹤code﹥K﹤/code﹥

﹤/molecule﹥

﹤/moleculedb﹥";

 

//load the xml string using simplexml function

$xml = simplexml_load_string($xml_string);

 

//loop through the each node of molecule

foreach ($xml-﹥molecule as $record)

{

//attribute are accessted by

echo $record['name'], ' ';

//node are accessted by -﹥ operator

echo $record-﹥symbol, ' ';

echo $record-﹥code, '﹤br /﹥';

}

7、数据库连接

﹤?php

if(basename(__FILE__) == basename($_SERVER['PHP_SELF'])) send_404();

$dbHost = "localhost"; //Location Of Database usually its localhost

$dbUser = "xxxx"; //Database User Name

$dbPass = "xxxx"; //Database Password

$dbDatabase = "xxxx"; //Database Name

 

$db = mysql_connect("$dbHost", "$dbUser", "$dbPass") or

die ("Error connecting to database.");

mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database.");

 

# This function will send an imitation 404 page if the user

# types in this files filename into the address bar.

# only files connecting with in the same directory as this

# file will be able to use it as well.

function send_404()

{

header('HTTP/1.x 404 Not Found');

print '﹤!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"﹥'."n".

'﹤html﹥﹤head﹥'."n".

'﹤title﹥404 Not Found﹤/title﹥'."n".

'﹤/head﹥﹤body﹥'."n".

'﹤h1﹥Not Found﹤/h1﹥'."n".

'﹤p﹥The requested URL '.

str_replace(strstr($_SERVER['REQUEST_URI'], '?'), '', $_SERVER['REQUEST_URI']).

' was not found on this server.﹤/p﹥'."n".

'﹤/body﹥﹤/html﹥'."n";

exit;

}

 

# In any file you want to connect to the database,

# and in this case we will name this file db.php

# just add this line of php code (without the pound sign):

# include"db.php";

?﹥

8、创建和解析JSON数据

$json_data = array ('id'=﹥1,'name'=﹥"rolf",'country'=﹥'russia',

"office"=﹥array("google","oracle"));

echo json_encode($json_data);

9、处理MySQL时间戳

$query = "select UNIX_TIMESTAMP(date_field) as mydate

from mytable where 1=1";

$records = mysql_query($query) or die(mysql_error());

while($row = mysql_fetch_array($records))

{

echo $row;

}

10、解压缩Zip文件

﹤?php

function unzip($location,$newLocation){

if(exec("unzip $location",$arr)){

mkdir($newLocation);

for($i = 1;$i﹤ count($arr);$i++){

$file = trim(preg_replace("~inflating: ~","",$arr[$i]));

copy($location.'/'.$file,$newLocation.'/'.$file);

unlink($location.'/'.$file);

}

return TRUE;

}else{

return FALSE;

}

}

?﹥

//Use the code as following:

﹤?php

include 'functions.php';

if(unzip('zipedfiles/test.zip','unziped/myNewZip'))

echo 'Success!';

else

echo 'Error';

?﹥