<?php
function generate_password($len = 6){

    $r = '';

    for($i=0; $i<$len; $i++)

        $r .= chr(rand(0, 25) + ord('a'));

    return $r;

}?>

Combination of rand() and md5() function is often used as a simpler alternative

<?phpfunction gen_md5_password($len = 6){    // function calculates 32-digit hexadecimal md5 hash    // of some random data

 return substr(md5(rand().rand()), 0, $len);

}?>

Time is important factor to generate a distinct value.The function accept two parameters, $length, the desired length of the password, and $strength, the desired strength of the password.

function generatePassword($length=9, $strength=0) {
$vowels = ‘aeuy’;
$consonants = ‘bdghjmnpqrstvz’;
if ($strength >= 1) {
$consonants .= ‘BDGHJLMNPQRSTVWXZ’;
}
if ($strength >= 2) {
$vowels .= “AEUY”;
}
if ($strength >= 4) {
$consonants .= ’23456789′;
}
if ($strength >= 8 ) {
$vowels .= ‘@#$%’;
}

$password = ”;
$alt = time() % 2;
for ($i = 0; $i < $length; $i++) {
if ($alt == 1) {
$password .= $consonants[(rand() % strlen($consonants))];
$alt = 0;
} else {
$password .= $vowels[(rand() % strlen($vowels))];
$alt = 1;
}
}
return $password;
}

Shorthand:

-webkit-transition: property_name duration timing_function delay;

-moz-transition: property_name duration timing_function delay;

-o-transition: property_name duration timing_function delay;

transition: property_name duration timing_function delay;

(Target) Property:

-webkit-transition-property: property_name;

-moz-transition-property: property_name;

-o-transition-property: property_name;

transition-property: property_name;

Duration:

-webkit-transition-duration: duration; 

-moz-transition-duration: duration; 

-o-transition-duration: duration; 

transition-duration: duration;

Timing (of motion):

-webkit-transition-timing-function: timing_function; 

-moz-transition-timing-function: timing_function; 

-o-transition-timing-function: timing_function; 

transition-timing-function: timing_function;

Available timing functions:

ease – equivalent to cubic-bezier(0.25, 0.1, 0.25, 1.0).

linear – equivalent to cubic-bezier(0.0, 0.0, 1.0, 1.0).

ease-in – equivalent to cubic-bezier(0.42, 0, 1.0, 1.0).

ease-out – equivalent to cubic-bezier(0, 0, 0.58, 1.0).

ease-in-out – equivalent to cubic-bezier(0.42, 0, 0.58, 1.0).

Delay:

-webkit-transition-delay: delay; 

-moz-transition-delay: delay; 

-o-transition-delay: delay; 

-transition-delay: delay; 

Delay (like duration) can be entered either in seconds (eg. 0.7s) or in milliseconds (eg. 700ms).

In general, it’s good to declare transitions on default state selectors without pseudo classes. This will cause transition played in both direction, eg. when hovering.

Remember, you have to enter all the properties four times before being cross-browser compliant. Therefore it’d be best to use shorthand codes for keeping your CSS code clean.

For example you can prevent less than four lines of a paragraph being left behind or printed on a new page using the following:

p {  widows:4;
      orphans:4; }

widows Attribute & Property

Sets or retrieves the minimum number of lines of a paragraph that must appear at the top of a page.

Syntax

HTML
{ widows : nLines }

Scripting
[ nLines = ] object.style.widows [ = nLines ]

** The property has no default value. The Cascading Style Sheets (CSS) attribute is not inherited.

This property applies when the document is printed. If there are fewer lines than necessary to satisfy this rule, the lines are moved to the following page. The widows property has precedence over the orphans property.

This property requires Internet Explorer to be in IE8 mode rendering.

Orphans Attribute & Property

Sets or retrieves the minimum number of lines of a paragraph that must appear at the bottom of a page.

Syntax

HTML
{ orphans : nLines }

Scripting
[ nLines = ] object.style.orphans [ = nLines ]

** The property has a default value of 0. The Cascading Style Sheets (CSS) attribute is not inherited.

In CSS the width of a box is set using the width property with any unit of length, for example:
DIV#col1 {
  width:400px }

DIV#col2 {
  width:50% }

DIV#col3 {
  width:33em }

Fixed Layout

A fixed width site is one where the main wrapper is set to a specific immovable width independent of the user agent’s display resolution. A common and considerate fixed width is 760 pixels, a size that ensures users with 800×600 resolution monitors have close to full window viewing without annoying side-scrolling.

This fixed-width div is 400 pixels wide. This example cannot be resized due to its fixed width. If the text is enlarged, it’ll wrap.

Fluid Layout

A fluid or liquid layout is created by not specifying a wrapper width at all or doing so using the percentage unit of measure. In other words, barring borders and padding screwing things up, a 100% width site will take up the entire view port width without producing a horizontal scroll bar.

This fluid-width div is 74% of the container’s fixed width. This example cannot be resized due to its fixed width parent. Changing screen size will have no bearing and if the text is enlarged, it’ll wrap.

Elastic Layout

An elastic site’s main wrapper and other elements are measured using ems as the unit of measure. Ems are relative proportionally to the text or font size. Thus, as the text size is increased, the sections measured in ems will increase in size as well.

This elastic-width div is 35ems wide. This example will change width as the text is enlarged, but this example has no width limiter.

It includes a visual example of the box model, unit reference for CSS units and the various media types CSS makes allowance for. A description of what is on the cheat sheet follows, or if you are impatient, you can go straight to the full size CSS cheat sheet

>>Download css cheat sheet in pdf 120.kb

Mozilla/Firefox and Safari 3 users should see a nicely rounded box, with a nicely rounded border.

Object shadows work with Firefox, Safari and Chrome. Here is a great tutorial with many more examples for box shadows. There are also several workarounds for Internet Explorer.

CSS transforms work with Firefox, Safari and Chrome. For IE, it is possible to add similar effects via matrix filters.

Column Layout is supported in Safari and Firefox. This degrades gracefully on other browsers by reverting to a standard one column layout.

>>Download css cheat sheet in pdf 120.kb

The simplexml_load_string() function turns the XML document into a PHP object with arrays. How did I figure out to loop over data->entry and get the href via link[0]['href']? Simple. I did a print_r($output) and checked the source of the document by hitting Cmd + U in Firefox on my Mac. That showed me that this entry is an array. I then did a print_r($e) in the loop to see all the properties of every entry. If it is part of the @attributes array, then you need to use the [] notation.

Now all that remains is to code "mail.php". This is made extremely easy by the facilities available in PHP. Type the following code into a file named "mail.php". Do not put anything else into that file, ie, don’t put in any other HTML tags or headers, etc

When the form is submitted to mail.php, the contents of the "email" field in the form is put into a PHP variable called $_REQUEST['email']. Likewise the contents of the "message" field is put into the variable $_REQUEST['message'].

If you had named the fields in your form "emailofsender" and "contentsofmessage", then the information submitted in those fields would have been available to your script in the variables $_REQUEST['emailofsender'] and $_REQUEST['contentsofmessage'] respectively. I think you get the idea.

The first thing we do in our PHP script is to make the information that is submitted easily accessible to the rest of the program.

Firstly, we made a copy of the contents of $_REQUEST['email'] in a variable we call $email. This was done in the line

Note that we don’t really have to call this new variable $email – we could have called it $thingamajig if we wished, but it makes sense to name a variable with some meaningful name.

Likewise, in the next line, we made a copy (assigned) of $_REQUEST['message'] in a variable $message.

Again, we could have named the new variable anything we wanted – but it’s easier for us to understand the program if the variable name reflects what it does.

The real workhorse of this script is in the line beginning with "mail"