MySQL is an application that allows user to store data in databases and tables, as well as to insert/retrieve data using SQL language.

Like this: <!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Strict//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd”> <html> <head> <title>My Test Page</title> <script type=”text/javascript” src=”js/jquery-1.5.2.min.js”></script> <script type=”text/javascript”> $(document).ready(function(){ $(‘#colorselect’).change(function () { $(‘:text’).val( ( $(this).val() ) ); }); }); </script> </head> <body> <input type = “text” /> <select id=”colorselect”> <option>Red</option> <option>Green</option> <option>Yellow</option> </select> <div></div> </body> </html>

Use val() function: $(‘:text’).mouseout(function () { alert( $(‘:text’).val() ); });

PHP has a built-n mail() function. mail() function in PHP takes three obligatory arguments and one optional. Obligatory arguments follow each other inside round brackets, are separated by a comma, and are placed in this order: where the message should be sent ($to), the subject of the message ($subject) and the body of the message […]

You can use before() and/or after() function: $(‘:submit’).click(function () { $(‘div’).before(‘Before<br />’); $(‘div’).after(‘<br />After’);

Here’s an example of using escape characters in PHP: ‘Here\’s an example of using escape characters in PHP: ‘; If you want to use \; or any other escape characters, you would have to use double-quoted strings:  “Here\’s another example of how to use escape characters in PHP\;”;

Single-quoted strings allow \’ and \\ escape characters. Any other escape characters must be used within double-quoted strings.

When PHP processes single quotes, it sees anything enclosed in these quotes as raw text. When PHP processes double quotes, it assumes that there are variables embedded inside the sentence. When PHP finds variables inside a double-quoted sentence, it simply inserts the value of the variable — this means that there is no need to […]

use wrap() function: <!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Strict//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd”> <html> <head> <title>My Test Page</title> <script type=”text/javascript” src=”js/jquery-1.5.2.min.js”></script> <script type=”text/javascript”> $(document).ready(function(){ $(‘:submit’).click(function () { $(‘div’).wrap(‘<div style=background-color:red;></div>’); }); }); </script> </head> <body> <div>Color me red.</div> <br /> <div>Me too.</div> <br /> <input value=”Go” type=”submit”> </body> </html>