Bootstrap Tab to set active & show its content in onload or onclick

<div>
    <ul class="nav nav-tabs" id="tabMenu">
        <li class="active"><a href="#Home">Home</a></li>
        <li><a href="#Training">Training</a></li>
        <li class="dropdown">
            <a data-toggle="dropdown" class="dropdown-toggle" href="#">
Placements <b class="caret"></b></a>
            <ul class="dropdown-menu">
                <li><a href="#dotnet">DotNet</a></li>
                <li><a href="#android">Android</a></li>
                <li><a href="#java">Java</a></li>
            </ul>
        </li>
    </ul>
    <div class="tab-content">
        <div id="Home" class="tab-pane fade in active">
            <p>This is the Home page...</p>
        </div>
        <div id="Training" class="tab-pane fade">
            <p>Please select your option regarding on Training...</p>
        </div>
        <div id="dotnet" class="tab-pane fade">
            <p>Welcome to DotNet Placements Section...</p>
        </div>
        <div id="android" class="tab-pane fade">
            <p>Welcome to Android Placements Section...</p>
        </div>
        <div id="java" class="tab-pane fade">
            <p>Welcome to Java Placements Section...</p>
        </div>
    </div>
</div>


Showing Tab targeted by Selector:
In order to show our tab manually on start or reload, we have to add the following 
script to the above code
<script type="text/javascript">
$(document).ready(function () {
    $('#tabMenu a[href="#java"]').tab('show'); 
// showing the tab targeted by the selector
});
</script>


Showing First tab by Default:
In order to show the First tab on page reload, Add the below script to the main source
<script type="text/javascript">
$(document).ready(function () {
    $("#tabMenu a:first").tab('show'); // It show the first tab on Reload
});
</script>


Showing Last tab by Default:
If we need to show the last tab on default, Change the Script like below,
<script type="text/javascript">
$(document).ready(function () {
    $("#tabMenu a:last").tab('show'); 
// It show the Last tab on Reload
});
</script>


Showing Tabs based on Index:
We can also show the Default Tab by using Index like in the below script,
<script type="text/javascript">
$(document).ready(function () {
    $("#tabMenu li:eq(1) a").tab('show'); 
// It shows second tab (0-indexed, like an array) on Reload
});
</script>

Make symbols with the help of Keyboard

Trademark Symbol	Alt+0153	™
Copyright Symbol	Alt+0169	©
Registered Trademark Symbol	Alt+0174	®
Degree Symbol	Alt+0176	°
Plus or Minus Sign	Alt+0177	±
Paragraph Mark Symbol	Alt+0182	¶
Fraction three-fourths	Alt+0190	¾
Multiplication Sign	Alt+0215	×
The Cent Sign	Alt+0162	¢
Upside Down Exclamation Point	Alt+0161	¡
Upside Down Question mark	Alt+0191	¿
Smily face	Alt+1	☺
Black Smily face	Alt+2	☻
Sun	Alt+15	☼
Female Symbol	Alt+12	♀
Male Symbol	Alt+11	♂
Spade	Alt+6	♠
Club	Alt+5	♣
Heart	Alt+3	♥
Diamond	Alt+4	♦
Eighth Note	Alt+13	♪
Beamed Eighth Note	Alt+14	♫
Squareroot Check mark	Alt+251	√
Up Arrow	Alt+24	↑
Down Arrow	Alt+25	↓
Right Arrow	Alt+26	→
Left Arrow	Alt+27	←
Up/Down Arrow	Alt+18	↕
Left/Right Arrow	Alt+29	↔

Datatable jQuery Plugin set order example

$(document).ready(function() {
    $('#example').dataTable( {
        "order": [[ 3, "desc" ]]
    } );
} );
Plugin files:
//code.jquery.com/jquery-1.11.1.min.js
//cdn.datatables.net/1.10.2/js/jquery.dataTables.min.js

Mysql get two column value in get single field

Table : user
--------------
| Id | Name  |
--------------
|  1 | Test  |
|  2 | Test1 |
|  3 | TEst2 |
|  4 | Test3 |
|  5 | Test4 |
|  6 | Test5 |
|  7 | Test6 |
--------------
Query :

selecr concat(id,":",name) as output from user

Output:
------------
| output   |
------------
|  1:Test  |
|  2:Test1 |
|  3:TEst2 |
|  4:Test3 |
|  5:Test4 |
|  6:Test5 |
|  7:Test6 |
------------

Mysql get multi row value in get single field

Table : user
--------------
| Id | Name  |
--------------
|  1 | Test  |
|  2 | Test1 |
|  3 | TEst2 |
|  4 | Test3 |
|  5 | Test4 |
|  6 | Test5 |
|  7 | Test6 |
--------------

Query :
select group_concat(concat(id) SEPARATOR ',') from user

Output:
1,2,3,4,5,6,7

To improve PHP Programming tip in 10 steps

1. Use an SQL Injection Cheat Sheet
2. Know the Difference Between Comparison Operators
3. Shortcut the else
4. Drop those Brackets
5. Favour str_replace() over ereg_replace() and preg_replace()
6. Use Ternary Operators
7. Memcached
8. Use a Framework
9. Use the Suppression Operator Correctly
10. Use isset instead of strlen

To find disk space for my computer & server in php

disk_free_space("directory");