以下是十五個最有用的PHP代碼片段。您可能還想對任何代碼或者你也可以分享你的代碼片段在評論部分如果你認為它可能對其他人有用。
1。發送郵件使用郵件函數在PHP
與站長百科 PHP教程同步首發
<?php
$to = "[email protected]";
$subject = "VIRALPATEL.net";
$body = "Body of your message here you can use HTML too. e.g. <br> <b> Bold </b>";
$headers = "From: Peter\r\n";
$headers .= "Reply-To: [email protected]\r\n";
$headers .= "Return-Path: [email protected]\r\n";
$headers .= "X-Mailer: PHP5\n";
$headers .= 'MIME-Version: 1.0' . "\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
mail($to,$subject,$body,$headers);
?>
2。Base64編碼和解碼字符串在PHP
function base64url_encode($plainText) {
$base64 = base64_encode($plainText);
$base64url = strtr($base64, '+/=', '-_,');
return $base64url;
}
function base64url_decode($plainText) {
$base64url = strtr($plainText, '-_,', '+/=');
$base64 = base64_decode($base64url);
return $base64;
}
3。在PHP中獲得遠程IP地址
function getRemoteIPAddress() {
$ip = $_SERVER['REMOTE_ADDR'];
return $ip;
}
上面的代碼將無法工作,以防您的客戶端代理服務器後面。在這種情況下使用函數來獲得真正的IP地址的客戶。
function getRealIPAddr()
{
if (!empty($_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 $ip;
}
4。秒到字符串
這個函數將返回給定時間段期間在天、小時、分鐘和秒。
例如secsToStr(1234567)將返回“14天6小時56分鐘,7秒”
function secsToStr($secs) {
if($secs>=86400){$days=floor($secs/86400);$secs=$secs%86400;$r=$days.' day';if($days<>1){$r.='s';}if($secs>0){$r.=', ';}}
if($secs>=3600){$hours=floor($secs/3600);$secs=$secs%3600;$r.=$hours.' hour';if($hours<>1){$r.='s';}if($secs>0){$r.=', ';}}
if($secs>=60){$minutes=floor($secs/60);$secs=$secs%60;$r.=$minutes.' minute';if($minutes<>1){$r.='s';}if($secs>0){$r.=', ';}}
$r.=$secs.' second';if($secs<>1){$r.='s';}
return $r;
}
5。電子郵件驗證代碼片段在PHP
$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。解析XML的簡單的方法使用PHP
所需的擴展:SimpleXML
//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 $record->code, '<br />';
}
7。數據庫連接在PHP
<?php
if(basename(__FILE__) == basename($_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。創建和解析JSON數據在PHP
以下是PHP代碼創建JSON數據格式,上面的示例使用的PHP數組。
$json_data = array ('id'=>1,'name'=>"rolf",'country'=>'russia',"office"=>array("google","oracle"));
echo json_encode($json_data);
下面的代碼將解析JSON數據到PHP數組。
$json_string='{"id":1,"name":"rolf","country":"russia","office":["google","oracle"]} ';
$obj=json_decode($json_string);
//print the parsed data
echo $obj->name; //displays rolf
echo $obj->office[0]; //displays google
9。MySQL在PHP過程時間戳
$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。在PHP中生成一個身份驗證代碼
這個基本的代碼片段將創建一個隨機身份驗證代碼,或者僅僅是一個隨機字符串。
<?php
# This particular code will generate a random string
# that is 25 charicters long 25 comes from the number
# that is in the for loop
$string = "abcdefghijklmnopqrstuvwxyz0123456789";
for($i=0;$i<25;$i++){
$pos = rand(0,36);
$str .= $string{$pos};
}
echo $str;
# If you have a database you can save the string in
# there, and send the user an email with the code in
# it they then can click a link or copy the code
# and you can then verify that that is the correct email
# or verify what ever you want to verify
?>
11。在PHP的日期格式驗證
驗證一個日期在“yyyy mm dd”格式。
function checkDateFormat($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;
}
12。HTTP重定向在PHP
<?php
header('Location: http://you_stuff/url.php'); // stick your url here
?>
13。目錄清單在PHP
<?php
function list_files($dir)
{
if(is_dir($dir))
{
if($handle = opendir($dir))
{
while(($file = readdir($handle)) !== false)
{
if($file != "." && $file != ".." && $file != "Thumbs.db"/*pesky windows, images..*/)
{
echo '<a target="_blank" href="'.$dir.$file.'">'.$file.'</a><br>'."\n";
}
}
closedir($handle);
}
}
}
/*
To use:
<?php
list_files("images/");
?>
*/
?>
14。在PHP浏覽器檢測腳本
<?php
$useragent = $_SERVER ['HTTP_USER_AGENT'];
echo "<b>Your User Agent is</b>: " . $useragent;
?>
15。Zip文件解壓縮一個
<?php
function unzip($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';
?>
你怎麼這樣小的收集的PHP代碼片段。你可能想要將您的代碼片段在評論中與他人分享。
作者：ssoftware
