How to change the maximum number of input variables for PHP scripts?

PHP obtains input variables from HTML forms (through GET and POST requests), 
as well as from any cookies enabled on a page. 
By default, the maximum number of input variables allowed for 
PHP scripts is set to 1000. You can change this amount by 
adding the max_input_vars directive to a php.ini file.

To change the maximum number of input variables allowed, use a text editor
 to add the max_input_vars directive to your php.ini file. For example,
 to set the maximum number of input variables to 1500, add the following setting:

max_input_vars = 1500

How to enable and disable the expose_php directive?

When the expose_php directive is enabled, PHP includes the following line in 
the HTTP response header when a PHP page is requested 
(the exact version number may differ depending on your configuration):

X-Powered-By: PHP/5.3.27

By default, the expose_php directive is enabled. However, you may not want to 
broadcast the specific PHP version your site is using. Similarly, 
some third-party applications require the expose_php directive to be disabled.

To disable the expose_php directive, use a text editor to modify your php.ini file as follows:

expose_php = off

With the expose_php directive disabled, PHP will not send the X-Powered-By header. 
To re-enable the expose_php directive and send the X-Powered-By header, 
modify your php.ini file as follows:

expose_php = on

How to do copy files from one directory to another directory using php?

Copy files from one directory to another directory using php
copy('foo/test.php', 'bar/test.php');

Simple way to get json values in javascript from json encoded from php

$pro = json_encode($array);

$.each(, function(i, post){

 alert(post.id)

});

Exact Floating validation in javascript

var qty = 2.56.6
if (!isFinite(qty)) {
 alert("false")
}else{
 alert("true")
}

Easy to integrate Facebook login to your web application

<fb:login-button scope="public_profile,email" onlogin="checkLoginState();">
</fb:login-button>
<span id="status"></span>
<script type='text/javascript'>
function statusChangeCallback(response) {
    console.log('statusChangeCallback');
    console.log(response);
    if (response.status === 'connected') {
      testAPI();
    } else if (response.status === 'not_authorized') {
      document.getElementById('status').innerHTML = 'Please log ' +'into this app.';
    } else {
      document.getElementById('status').innerHTML = 'Please log ' +'into Facebook.';
    }
}
function checkLoginState() {
    FB.getLoginStatus(function(response) {  statusChangeCallback(response); });
}

window.fbAsyncInit = function() {
    FB.init({
        appId      : "FB_APP_ID", 
        cookie     : true,  // enable cookies to allow the server to access // the session
        xfbml      : true,  // parse social plugins on this page
        version    : 'v2.1' // use version 2.1
    });
    //FB.getLoginStatus(function(response) {  statusChangeCallback(response); });
};

(function(d, s, id) {
    var js, fjs = d.getElementsByTagName(s)[0];
    if (d.getElementById(id)) return;
    js = d.createElement(s); js.id = id;
    js.src = "//connect.facebook.net/en_US/sdk.js";
    fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));

function testAPI() {
    console.log('Welcome!  Fetching your information.... ');
    FB.api('/me', function(response) {
        console.log('Successful login for: ' + response.name);
        var name = response.name;
        var email = response.email;
        document.getElementById('status').innerHTML = 'Thanks for logging in, ' + response.email + '!';
    });
}
</script>

How to resolve auto restart in Android mobile after Factory reset on your device?

Kindly follow steps to follw,
1. First to reset your device
2. To connect internet via wireless or mobile data to configure in Gmail Account first
3. Asking To insert SIM then to insert & restart your device issue solved