Getting client ip address in PHP

// Function to get the client ip address
function getClientIp() {
    $ipaddress = '';
    if (isset($_SERVER['HTTP_CLIENT_IP']))
        $ipaddress = $_SERVER['HTTP_CLIENT_IP'];
    else if(isset($_SERVER['HTTP_X_FORWARDED_FOR']))
        $ipaddress = $_SERVER['HTTP_X_FORWARDED_FOR'];
    else if(isset($_SERVER['HTTP_X_FORWARDED']))
        $ipaddress = $_SERVER['HTTP_X_FORWARDED'];
    else if(isset($_SERVER['HTTP_FORWARDED_FOR']))
        $ipaddress = $_SERVER['HTTP_FORWARDED_FOR'];
    else if(isset($_SERVER['HTTP_FORWARDED']))
        $ipaddress = $_SERVER['HTTP_FORWARDED'];
    else if(isset($_SERVER['REMOTE_ADDR']))
        $ipaddress = $_SERVER['REMOTE_ADDR'];
    else
        $ipaddress = null;
 
    return $ipaddress;
}

// Function to get the client ip address

function getClientIp() {

$ipaddress = '';

if (isset($_SERVER['HTTP_CLIENT_IP']))

$ipaddress = $_SERVER['HTTP_CLIENT_IP'];

else if(isset($_SERVER['HTTP_X_FORWARDED_FOR']))

$ipaddress = $_SERVER['HTTP_X_FORWARDED_FOR'];

else if(isset($_SERVER['HTTP_X_FORWARDED']))

$ipaddress = $_SERVER['HTTP_X_FORWARDED'];

else if(isset($_SERVER['HTTP_FORWARDED_FOR']))

$ipaddress = $_SERVER['HTTP_FORWARDED_FOR'];

else if(isset($_SERVER['HTTP_FORWARDED']))

$ipaddress = $_SERVER['HTTP_FORWARDED'];

else if(isset($_SERVER['REMOTE_ADDR']))

$ipaddress = $_SERVER['REMOTE_ADDR'];

else

$ipaddress = null;

return $ipaddress;

}

$_SERVER is an array containing information such as headers, paths, and script locations.The entries in this array are created by the web server

Setting Up MongoDB with PHP and MAMP

If you haven’t already installed mongodb in your system:

You can follow this http://docs.mongodb.org/manual/tutorial/install-mongodb-on-os-x/

Then, to install latest Mongodb driver using PECL:

Install autoconf using homebrew or Mac Ports:

brew install autoconf

1	brew install autoconf

Download latest stable PHP source from php.net.
Create phpx.x.x/include/ (example: php5.5.10) folder in

/Applications/MAMP/bin/php/

1	/Applications/MAMP/bin/php/

Rename uncompressed php source folder from php-x.x.x to php and paste it in this folder

/Applications/MAMP/bin/php/phpx.x.x/include/

1	/Applications/MAMP/bin/php/phpx.x.x/include/

Using the terminal open php folder and run ./configur

cd /Applications/MAMP/bin/php/phpx.x.x/include/php/ && ./configure

1	cd /Applications/MAMP/bin/php/phpx.x.x/include/php/ && ./configure

Add MAMP bin to your ~/.bash_profile

echo "export PATH=/Applications/MAMP/bin/php/phpx.x.x/bin:$PATH" >> ~/.bash_profile source ~/.bash_profile

1	echo "export PATH=/Applications/MAMP/bin/php/phpx.x.x/bin:$PATH" >> ~/.bash_profile source ~/.bash_profile

Install latest mongo

pecl install mongo

1	pecl install mongo

Edit php.ini

Add extension=mongo.so to your /Applications/MAMP/bin/php/phpx.x.x/conf/php.ini file.

1	Add extension=mongo.so to your /Applications/MAMP/bin/php/phpx.x.x/conf/php.ini file.

Restart MAMP server :)

How to get, set and select elements with data attributes ?

Using jquery,

$('#element').attr('data-data1', '1');
// Sets the attribute

$('#element[data-data1="1"]')
// Selects the element with data-data1 attribute'

$('#element').data('data1');
// Gets the value  of the attribute

$('#element').attr('data-data1');
// Gets the value  of the attribute

$('#element').attr('data-data1', '1');

// Sets the attribute

$('#element[data-data1="1"]')

// Selects the element with data-data1 attribute'

$('#element').data('data1');

// Gets the value of the attribute

$('#element').attr('data-data1');

// Gets the value of the attribute

In plain Javascript,

var elem = document.getElementById('element');

elem.setAttribute('data-data1', '1');
 // Set the attribute

elem.getAttribute('data-data1');
// Gets the attribute

var elem = document.getElementById('element');

elem.setAttribute('data-data1', '1');

// Set the attribute

elem.getAttribute('data-data1');

// Gets the attribute

Reset a form using jQuery

$("#id-of-the-form")[0].reset();

1	$("#id-of-the-form")[0].reset();

Hide index.php in the url, Yii

Add an .htaccess file to your webroot ( project directory) eg. /var/www/yourproject/.htacess
Open that .htaccess file and add the following text there

RewriteEngine on

# if a directory or a file exists, use it directly
 RewriteCond %{REQUEST_FILENAME} !-f
 RewriteCond %{REQUEST_FILENAME} !-d

# otherwise forward it to index.php
 RewriteRule . index.php

RewriteEngine on

# if a directory or a file exists, use it directly

RewriteCond %{REQUEST_FILENAME} !-f

RewriteCond %{REQUEST_FILENAME} !-d

# otherwise forward it to index.php

RewriteRule . index.php

In /protected/config/main.php at component , set:

'urlManager'=> array(
 'urlFormat'=>'path',
 'showScriptName'=> false,
 'caseSensitive'=> false,
 ),

'urlManager'=> array(

'urlFormat'=>'path',

'showScriptName'=> false,

'caseSensitive'=> false,

Including js and css files in Yii

Including core js files

<?php  
Yii::app()->clientScript->registerCoreScript('jquery');     
Yii::app()->clientScript->registerCoreScript('jquery.ui'); 
?>

<?php

Yii::app()->clientScript->registerCoreScript('jquery');

Yii::app()->clientScript->registerCoreScript('jquery.ui');

Including other js and css files

<?php

$baseUrl = Yii::app()->baseUrl;
$cs = Yii::app()->getClientScript();
$cs->registerScriptFile($baseUrl.'/path/to/your/script');
// eg: $cs->registerScriptFile($baseUrl.'/js/yourscript.js';
$cs->registerCssFile($baseUrl.'/path/to/your/css');
//eg: $cs->registerCssFile($baseUrl.'/css/yourcss.css');

?>

<?php

$baseUrl = Yii::app()->baseUrl;

$cs = Yii::app()->getClientScript();

$cs->registerScriptFile($baseUrl.'/path/to/your/script');

// eg: $cs->registerScriptFile($baseUrl.'/js/yourscript.js';

$cs->registerCssFile($baseUrl.'/path/to/your/css');

//eg: $cs->registerCssFile($baseUrl.'/css/yourcss.css');

javaScript window navigator

The window.navigator object contains information about the visitor’s browser.

The window.navigator object can be written without the window prefix.

Some of its properties are tabulated below…

Name	Description	Version
appCodeName	Specifies the code name of the browser.	Implemented in JavaScript 1.0
appName	Specifies the name of the browser.	Implemented in JavaScript 1.0
appVersion	Specifies version information for the Navigator.	Implemented in JavaScript 1.0
language	Indicates the translation of the Navigator being used.	Implemented in JavaScript 1.2
mimeTypes	An array of all MIME types supported by the client.	Implemented in JavaScript 1.1
platform	Indicates the machine type for which the Navigator was compiled.	Implemented in JavaScript 1.2
plugins	An array of all plug-ins currently installed on the client.	Implemented in JavaScript 1.1
userAgent	Specifies the user-agent header.	Implemented in JavaScript 1.0

// simply do
navigator.appCodeName ;

1 2	// simply do navigator.appCodeName ;

Warning !!!

The information from the navigator object can often be misleading, and should not be used to detect browser versions because:

The navigator data can be changed by the browser owner
Some browsers misidentify themselves to bypass site tests
Browsers cannot report new operating systems, released later than the browser

Differences between javaScript setTimeout and setInterval

setTimeout(expression, timeout);

1	setTimeout(expression, timeout);

 setInterval(expression, interval);

1	setInterval(expression, interval);

The important difference is that, whereas setTimeout() triggers expression only once after the timeout , setInterval() keeps triggering expression again and again in intervals (unless you tell it to stop).

var intervalId = setInterval(alert, 1000);
// Will alert every second.
// clearInterval(intervalId); // Will clear the timer.

var timeoutId= setTimeout(alert, 1000);
// Will alert once, after a second.
//clearTimeout(timeoutId);
//will cancel the function's execution before it starts.

var intervalId = setInterval(alert, 1000);

// Will alert every second.

// clearInterval(intervalId); // Will clear the timer.

var timeoutId= setTimeout(alert, 1000);

// Will alert once, after a second.

//clearTimeout(timeoutId);

//will cancel the function's execution before it starts.

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