In this tutorial, i will share how to send Email from XAMPP (PHP). i use XAMPP 1.8.1 version .This has been tested by me and it worked.

Lets start:-
first always make a backup before changing any code in core/configuration files.
then

Edit your php.ini in - “xampp\php\php.ini”

Before Changes:- 
---------------------------
[mail function]
; For Win32 only.
; http://php.net/smtp
SMTP = localhost
; http://php.net/smtp-port
smtp_port = 25

; For Win32 only.
; http://php.net/sendmail-from
;sendmail_from = postmaster@localhost

; XAMPP IMPORTANT NOTE (1): If XAMPP is installed in a base directory with spaces (e.g. c:\program filesD:\xampp) fakemail and mailtodisk do not work correctly.
; XAMPP IMPORTANT NOTE (2): In this case please copy the sendmail or mailtodisk folder in your root folder (e.g. C:\sendmail) and use this for sendmail_path.

; XAMPP: Comment out this if you want to work with fakemail for forwarding to your mailbox (sendmail.exe in the sendmail folder)
;sendmail_path = "\"\XAMPP\sendmail\sendmail.exe\" -t"

After Changes :-
-----------------------
[mail function]
; For Win32 only.
; http://php.net/smtp
SMTP = smtp.gmail.com
; http://php.net/smtp-port
smtp_port = 587

; For Win32 only.
; http://php.net/sendmail-from
sendmail_from = yourgmailid@gmail.com

; XAMPP IMPORTANT NOTE (1): If XAMPP is installed in a base directory with spaces (e.g. c:\program filesD:\xampp) fakemail and mailtodisk do not work correctly.
; XAMPP IMPORTANT NOTE (2): In this case please copy the sendmail or mailtodisk folder in your root folder (e.g. C:\sendmail) and use this for sendmail_path.

; XAMPP: Comment out this if you want to work with fakemail for forwarding to your mailbox (sendmail.exe in the sendmail folder)
sendmail_path = "\"\XAMPP\sendmail\sendmail.exe\" -t"

now

Edit your sendmail.ini - “xampp\sendmail\sendmail.ini”

Hi, in this tutorial we will discuss on current website url and current / working directory name

First you can get the name of the website by using

<?php echo $_SERVER['SERVER_NAME']; ?>
or
<?php echo $_SERVER['HTTP_HOST']; ?>

Now you can get the directory name

<?php echo dirname($_SERVER['PHP_SELF']); ?>

NOTE:
(if you are working on  multi folders and you need parent folder you can use 'dirname()'  function multi times

Example if you using 2 folders like /manage/user/ and you need parent folder only (i.e manage)

<?php echo dirname(dirname($_SERVER['PHP_SELF'])); ?>

you will get /admin result.

 )

Now the complete path

<?php echo "http://".dirname($_SERVER['SERVER_NAME']."".$_SERVER['PHP_SELF']); ?>

Result:  http://www.example.com/manage/user

and

complete the path with parent directory name

<?php echo "http://".dirname(dirname($_SERVER['SERVER_NAME']."".$_SERVER['PHP_SELF'])); ?>

Result:  http://www.example.com/manage

Put this code in functions.php file
<?php

if ( ! function_exists( 'wp_pagination' ) ) :
function wp_pagination() {
global $wp_query;

$int_val= 99999999; // need an unlikely integer

echo paginate_links( array(
'base' => str_replace( $int_val, '%#%', esc_url( get_pagenum_link( $int_val) ) ),
'format' => '?paged=%#%',
'current' => max( 1, get_query_var('paged') ),
'total' => $wp_query->max_num_pages
) );
}
endif;

?>

and put this code anywhere for pagination

<?php wp_pagination (); ?>

function generateRandomString($length = 10) {
    $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
    $randomStringValue = '';
    for ($i = 0; $i < $length; $i++) {
        $randomStringValue .= $characters[rand(0, strlen($characters) - 1)];    }
    return $randomStringValue ;}

// Echo the random string.
echo generateRandomString(); 

Just keep a counter, increment it in the loop, and if it's an odd number set class to odd, if even set class to even. 

$result  = "";
$count = -1;

while ( $row = mysql_fetch_assoc( $query) ) {
  $class = $count++ % 2 === 0 ? "even" : "odd" ;
  $href  = $row["url"];
  $text  = $row["name"];
  $output .= "<li class='{$class}'><a href='foo?id={$href}'>{$name}</a></li>";
}

echo "<ul>{$result}</ul>";

you can try this to redirect your own url when clicking browser back button

<script>

jQuery(document).ready(function($) {

      if (window.history && window.history.pushState) {

        $(window).on('popstate', function() {
          var hashLocation = location.hash;
          var hashSplit = hashLocation.split("#!/");
          var hashName = hashSplit[1];

          if (hashName !== '') {
            var hash = window.location.hash;
            if (hash === '') {
              alert('Back button was pressed.');
                window.location='www.yourweburlhere.com';
                return false;
            }
          }
        });

        window.history.pushState('forward', null, './#forward');
      }

    });

</script>

You need to test for the negation of the Regular Expressions because you want the validation to alert upon failure,

(is_valid = !/^[0-9]+$/.test(x))

Example :-

<form action="" method="POST" name="cdp_form" id="cdp_form">
<input type="text" id="phone_number" name="phone_number" placeholder="Enter your phone number" maxlength="10" onkeyup="validateForm()">
<button type="submit" name="SEND" class="btn btn-brown">Send</button>
</form>
<?php echo $successmsg; ?>
<script>
//form validation
function validateForm()
{
var x=document.forms["cdp_form"]["phone_number"].value
if (x==null || x=="")
  {
  alert("Phone number  field must be filled in");
  cdp_form.phone_number.focus();
  return false;
  }
else if (is_valid = !/^[0-9]+$/.test(x))
    {
    alert("Phone number field must have numeric characters");
    cdp_form.phone_number.focus();
    return false;
  }
}
</script>

split - Split string into array by regular expression

for Example :
Parse a Date which may b delimited with dots, hypens or slashes-

<?php
//store your date in $date variable
$date = "04-24-2014";
list($month, $day, $year) = split('[/.-]', $date);
echo "Month: $month; Day: $day; Year: $year<br />\n";
?>

2nd Example :-

<?php
//store your date in $date variable
$date = "04-24-2014";
list($month, $day, $year) = split('[/.-]', $date);

//  - convert number to month name
$monthNum  = $month;
$monthName = date('F', mktime(0, 0, 0, $monthNum, 10)); // March
echo $monthName .' '.$day .', '. $year ;
?>

This Javascript code will scroll the page bottom

$('html, body').animate({scrollTop:$(document).height()}, 'fast'); 

and change your speed as required in numerical or slow , fast. Here we use fast in example

And create jQuery function 

$(document).ready(function() {     
 $('#yourId').click(function(){
       $('html, body').animate({scrollTop:$(document).height()}, 'fast');
        return false;  });
}); 

And for body part 

Use a link to an anchor tag e.g. <div id="yourId"> or <a href="#yourId"> 

Put this code in Header part:-
(Complete Code)

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script>
<script type="text/javascript">
 function bottomScroll() {
  $('html, body').animate({scrollTop:$(document).height()}, 'fast');
 }
 function topScroll() {
  $('html, body').animate({scrollTop:0}, 'fast');
 }
</script>

Put this code in Header part:-

 <a href="javascript:bottomScroll()">Bottom Scroll</a>
 <a href="javascript:topScroll()">Top Scroll</a> 

HTML CODE
<select id=p1 name=no_year onChange="show_month()"; multiple size=4><option value=Jan>January</option>
<option value=February>February</option>
<option value=March>March</option>
<option value=April>April</option>
<option value=June>June</option>
<option value=Jul>July</option>
<option value=Auguest>Auguest</option>
<option value=September>Septembr</option>
<option value=October>October</option>
<option value=November>November</option>
<option value=December>December</option>
</select>
<div id='getValue'><br><br></div>

JAVASCTIPT
<script type="text/javascript">
function show_month(){
var str='';
for (i=0;i<p1.length;i++) {
if(p1[i].selected){
str +=p1[i].value + "<br >";
}
}
document.getElementById("getValue").innerHTML=str;
return true;
}
</script>

Today's topic is :- The selected option of a drop down listbox by using onChange event trigger. The onChange event will trigger 1 JavaScript function and we will try to read the selected item by using getElementById

Option 1:-
HTML CODE
<select>
    <option value="1">pankaj</option>
    <option value="2">sangwan</option>
</select>
JAVASCTIPT
$('select').on('change', function() {
  alert( this.value ); // output of your selected value

})

Option 2:-
HTML CODE
<select id="mySelect" onchange="copy();">
<option value="">Select a person:</option>
    <option value="pankaj" >pankaj</option>
    <option value="gurinder" >gurinder</option>
    <option value="avneet" >avneet</option>
    <option value="John Smith" >John Smith</option>
</select>
//value shows in here
<div id="label"></div>

JAVASCTIPT
function copy() { document.getElementById("label").innerHTML=document.getElementById("mySelect").value

}


Option 3:-
HTML CODE

<label for="continent">Select Continent</label>
  <select id="continent" onchange="countryChange(this);">
    <option value="empty">Select a Continent</option>
    <option value="North America">North America</option>
    <option value="South America">South America</option>
    <option value="Asia">Asia</option>
    <option value="Europe">Europe</option>
  </select>
  <br/>
  <label for="country">Select a country</label>
  <select id="country">
    <option value="0">Select a country</option>

  </select>

JAVASCTIPT
<script type="text/javascript">
 //<![CDATA[
 // array of possible countries in the same order as they appear in the country selection list
 var countryLists = new Array(4)
 countryLists["empty"] = ["Select a Country"];
 countryLists["Asia"] = ["India", "China", "Japan", "Nepal"];
 countryLists["North America"] = ["Canada", "United States", "Mexico"];
 countryLists["South America"] = ["Argentina", "Chile", "Brazil"];
 countryLists["Europe"]= ["Spain", "France", "Germany", "Britain"];

 function countryChange(selectObj) {
 // get the index of the selected option
 var idx = selectObj.selectedIndex;
 // get the value of the selected option
 var which = selectObj.options[idx].value;
 // use the selected option value to retrieve the list of items from the countryLists array
 cList = countryLists[which];
 // get the country select element via its known id
 var cSelect = document.getElementById("country");
 // remove the current options from the country select
 var len=cSelect.options.length;
 while (cSelect.options.length > 0) {
 cSelect.remove(0);
 }
 var newOption;
 // create new options
 for (var i=0; i<cList.length; i++) {
 newOption = document.createElement("option");
 newOption.value = cList[i];  // assumes option string and value are the same
 newOption.text=cList[i];
 // add the new option
 try {
 cSelect.add(newOption);  // this will fail in DOM browsers but is needed for IE
 }
 catch (e) {
 cSelect.appendChild(newOption);
 }
 }
 }
//]]>

</script>

Test Credit Card Account Numbers

Test Credit Card Account Numbers

Credit Card Type	Credit Card Number
American Express	378282246310005
American Express	371449635398431
American Express Corporate	378734493671000
Australian BankCard	5610591081018250
Diners Club	30569309025904
Diners Club	38520000023237
Discover	6011111111111117
Discover	6011000990139424
JCB	3530111333300000
JCB	3566002020360505
MasterCard	5555555555554444
MasterCard	5105105105105100
Visa	4111111111111111
Visa	4012888888881881
Visa	4222222222222 Note : Even though this number has a different character count than the other test numbers, it is the correct and functional number.
Processor-specific Cards
Dankort (PBS)	76009244561
Dankort (PBS)	5019717010103742
Switch/Solo (Paymentech)	6331101999990016

<html>
<body>
<form action="<?php $_SERVER['PHP_SELF']; ?>" method="POST" enctype="multipart/form-data">
<input type="file" name="file" >
<input type="submit" name="submit" value="Upload">
</form>
</body>
</html>

<?php
$host = 'localhost';
$user = 'root';
$pw = '';
$db = 'Database name';

$con = mysql_connect($host,$user,$pw);

MyISAM was the default storage engine for the MySQL relational database management system versions prior to 5.5. It is based on the older ISAM code but has many useful extensions.
Each MyISAM table is stored on disk in three files. The files have names that begin with the table name and have an extension to indicate the file type. The data file has a .MYD (MYData) extension,  index file has a .MYI (MYIndex) extension & uses a .frm file to store the definition of the table, but this file is not a part of the MyISAM engine; instead it is a part of the server.

In a simple way :-

MYISAM supports Table-level Locking
MyISAM designed for need of speed
MyISAM does not support foreign keys hence we call MySQL with MYISAM is DBMS
MyISAM stores its tables, data and indexes in diskspace using separate three different files. (tablename.FRM, tablename.MYD, tablename.MYI)
MYISAM not supports transaction. You cannot commit and rollback with MYISAM. Once you issue a command it’s done.
MYISAM supports fulltext search
You can use MyISAM, if the table is more static with lots of select and less update and delete.

( Storage engine :- A database engine (or storage engine) is the underlying software component that a database management system (DBMS) uses to create, read, update and delete (CRUD) data from a database. Most database management systems include their own application programming interface (API) that allows the user to interact with their underlying engine without going through the user interface of the DBMS. )