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Giới thiệu tới các bạn các đoạn code hay dùng nhất trong lập trình php.nên tham khảo bổ sung kiến thức webbsite cho bạn.
1. Send Mail using mail function in PHP
1. Send Mail using mail function in PHP
- Code:
$to = "[email=viralpatel.net@gmail.com]viralpatel.net@gmail.com[/email]";
$subject = "VIRALPATEL.net";
$body = "Body of your message here you can use HTML too. e.g.
<br> <b> Bold </b>";
$headers = "From: Peter";
$headers .= "Reply-To: [email=info@yoursite.com]info@yoursite.com[/email]";
$headers .= "Return-Path: [email=info@yoursite.com]'mailto:info@yoursite.com[/email]
$headers .= "X-Mailer:
PHP5";
$headers .= 'MIME-Version: 1.0' . "";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "";
mail($to,$subject,$body,$headers);
?>
- Code:
function base64url_encode($plainText) {
$base64 = base64_encode($plainText);
$base64url = strtr($base64, '+/=', '-_,');
return $base64url;
}
function base64url_decode($plainText) {
$base64url = strtr($plainText, '-_,', '+/=');
$base64 = base64_decode($base64url);
return $base64;
}
- Code:
function getRemoteIPAddress() {
$ip = $_SERVER['REMOTE_ADDR'];
return $ip;
}
nếu người truy cập web cố tình dấu địa chỉ ip này bằng proxy thì sử dụng code sau : function getRealIPAddr()
{
if (!empty($_SERVER['HTTP_CLIENT_IP'])) //check ip from
{
$ip=$_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 $ip;
}
- Code:
function secsToStr($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;
}
- Code:
$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.';
}
- Code:
//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 $record->code, '<br />';
}
- Code:
<?php
if(basename(__FILE__) == basename($_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";
?>
- Code:
$json_data = array ('id'=>1,'name'=>"rolf",'country'=>'russia',
"office"=>array("google","oracle"));
echo json_encode($json_data);
sử dụng mảng $json_string='{"id":1,"name":"rolf","country":"rus sia","office":
["google","oracle"]} ';
$obj=json_decode($json_string);
//print the parsed data
echo $obj->name; //displays rolf
echo $obj->office[0]; //displays google
- Code:
$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;
}
- Code:
<?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 $str;
# If you have a database you can save the string in
# there, and send the user an email with the code in
# it they then can click a link or copy the code
# and you can then verify that that is the correct email
# or verify what ever you want to verify
?>
- Code:
function checkDateFormat($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;
}
- Code:
<?php
header('Location: 'http://you_stuff/url.php');
?>
- Code:
<?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>'."";
}
}
closedir($handle);
}
}
}
/*
To use:
<?php
list_files("images/");
?>
*/
?>
15. Unzip a Zip File
$useragent = $_SERVER ['HTTP_USER_AGENT'];
echo "Your User Agent is: " . $useragent;
?>
- Code:
<?php
function unzip($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';
?>
