PHP Rewind

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What are all the essential topics in PHP for learning?

The below topics we need to cover while learning PHP.

PHP Basics
Strings and String Functions
Basic Arithmetic
Conditions and Loops
Arrays and Array Functions
Processing Form Submissions
Beginning Security, Validation, and Escaping
Cookies, Sessions, and Includes
User Defined Functions
Variable Scope
Beginning Object-Oriented Programming (OOP)
Connecting to and Using MySQL Databases

How to install and configure PHP on IIS 8 in Windows 8

The below three steps we need to follow up for php installation on windoes 8 operating system.

IIS 8 installation.
Microsoft Web Platform Installer instalation.
PHP installation and configuration with Microsoft Web Platform Installer.

A. IIS 8 Installation

These are steps to activate IIS 8 in Windows 8 :

Run Turn Windows features on or off with choose Settings form charms bar, then choose Control Panel.
In Control Panel window, choose Programs.
In Programs and Features, choose Turn Windows features on or off.
Check Internet Information Service and click OK button.

After the installation process is complete, we can check whether IIS 8 is installed correctly by running Internet Explorer. In the address bar, type http://localhost. If successful, we see web page like this picture below.

B. Microsoft Web Platform Installer Installation
Microsoft Web Platform Installer is a simple, free tool that automates the installation of Microsoft's entire Web Platform including PHP. We can download it form this url http://www.microsoft.com/web/downloads/platform.aspx. The name of installer is wpilauncher.exe.

Run wpilauncher.exe and we will see installation status like this picture below.

After installation is completed, we can see Web Platform Installer 4.0 window like this picture below.

C. PHP Installation and Configuration
These are step to install and configure PHP with Web Platform Installer :

In Web Platform Installer window, choose Products tab and search PHP version that we will install.
Click Add button as we can see in picture below.
After click Add button, we can see there are 2 items that will be installed. By click Items to be installed link, we can see list of those items.
Click Install button.
Click I Accept button and it will be downloaded item and install them.
After the installation process is complete, click Finish button.

To check whether the installation and configuration are success, we can test it by follow these steps :

Create info.php file and type this code below as content.
Copy info.php file to IIS’s root folder in C:\inetpub\wwwroot.
Run Internet Explorer, and type http://localhost/infor.php in address bar.
We will see web page like picture below if all installation and configuration are successed.

What is IIS (Internet Information Services)?

Internet Information Services (IIS) for Windows® Server is a flexible, secure and manageable Web server for hosting anything on the Web. From media streaming to web applications, IIS's scalable and open architecture is ready to handle the most demanding tasks.

Steps to integrate Yamm mega menu into your own bootstrap website

I am doing website design using bootstrap and a need to use mega menu instead of using list menu items in the navigation bar.

For this purpose I found Yamm mega menu will be useful for my site and followed the below steps for the integration.

1. Download Yamm from http://geedmo.github.io/yamm/

After you download extract the zip file (yamm3-master). The following directories will be exists in the extracted yamm3-master directory.

2. Copy yamm folder and paste it in your website css folder.

3. Include yamm.css in header.html/php file like below

<link href="css/yamm/yamm.css" rel="stylesheet" type="text/css">

4. Go to yamm directory which you downloaded and open the demo.css from demo directory.

5. Find & copy the below css class and paste it in your website css (yoursite.css) file which is used for your UI Design.

/* menu styes */
.list-unstyled,
.list-unstyled ul { min-width: 120px }

@media ( min-width: 767px ) {
.panel-group { width: 400px; }
.thumbnail { margin: 0; }

}

6. Find the navbar css style in header.html/php file and include the yamm class in div tag.


<nav class="navbar yamm navbar-inverse navbar-fixed-top" role="navigation">

7. Then finally add the mega menu content in menu items like below.

<li class="dropdown"><a href="#" class="dropdown-toggle" data-toggle="dropdown">Services </a>

<li>

<li>

Web Designing

</li>

</ul>

<li>

Web Development

</li>

</ul>

<li>

Ecommerce & CMS Solutions

</li>

</ul>

</div></div>

</li>

</ul>

</li>

I hope this will be helpful for you also to integrate with your website designing.

Website is broken in IE due to "SEC7113: CSS was ignored due to mime type mismatch"

I am doing web designing using bootstrap. But Internet Explorer 8-10+ refuses to load the CSS files due to "CSS was ignored due to mime type mismatch"

On your computer search for "regedit.exe" (go to the start menu and click on the search button on the top-right corner of the screen).
Once regedit opens up, on the left column click on "HKEY_CLASSES_ROOT" and then on ".css"
On the right column double-click on "Content Type". This will open up a dialog box with value as application/x-css.
Change this "value data" to "text/css".
Click "Ok" and that's it.

List of Arrays Functions and Examples in PHP

1. The array() function is used to create an array
2. The array_change_key_case() function changes all keys in an array to lowercase or uppercase.
3. The array_chunk() function splits an array into chunks of new arrays.
4. The array_combine() function creates an array by using the elements from one “keys” array and one “values” array.
5. The array_count_values() function counts all the values of an array.
6. The array_diff() function compares the values of two (or more) arrays, and returns the differences.
7. The array_fill() function fills an array with values.
8. The array_merge() function merges one or more arrays into one array.
9. The array_shift() function removes the first element from an array, and returns the value of the removed element.
10. The array_pop() function deletes the last element of an array.

<?php

$cars = array("Volvo", "BMW", "Toyota");
echo " :: array() function :: ";
echo "I like " . $cars[0] . ", " . $cars[1] . " and " . $cars[2] . ".";

echo " -----------------------------------------";

$cars = array("Volvo", "BMW", "Toyota", "Honda", "Mercedes", "Opel");

echo " :: array_chunk() function :: ";

print_r(array_chunk($cars, 2));

echo " -----------------------------------------";

$fname = array("Peter", "Ben", "Joe");

$age = array("35", "37", "43");

echo " :: array_combine() function :: ";

$c = array_combine($fname, $age);

print_r($c);

echo " -----------------------------------------";

$a = array("A", "Cat", "Dog", "A", "Dog");
echo " :: array_count_values() function :: ";
print_r(array_count_values($a));

echo " -----------------------------------------";

$a1 = array("a"=>"red", "b"=>"green", "c"=>"blue", "d"=>"yellow");

$a2 = array("e"=>"red", "f"=>"green", "g"=>"blue");

$result = array_diff($a1, $a2);
echo " :: array_diff() function :: ";
print_r($result);

echo " -----------------------------------------";

$a1 = array_fill(3, 4, "blue");

$b1 = array_fill(0, 1, "red");
echo " :: array_fill() function :: ";

print_r($a1);
echo " ";
print_r($b1);

echo " -----------------------------------------";

$a1 = array("red", "green");

$a2 = array("blue", "yellow");

echo " :: array_merge() function :: ";

print_r(array_merge($a1, $a2));

echo " -----------------------------------------";

$a = array("a"=>"red", "b"=>"green", "c"=>"blue");

echo " :: array_shift() function :: ";

echo array_shift($a);
echo " ";

print_r ($a);

echo " -----------------------------------------";

$a = array("red", "green", "blue");

array_pop($a);

echo " :: array_pop() function :: ";

print_r($a);

echo " -----------------------------------------";

?>

OUTPUT:

:: array() function ::
I like Volvo, BMW and Toyota.
-----------------------------------------

:: array_chunk() function ::
Array ( [0] => Array ( [0] => Volvo [1] => BMW ) [1] => Array ( [0] => Toyota [1] => Honda ) [2] => Array ( [0] => Mercedes [1] => Opel ) )
-----------------------------------------

:: array_combine() function ::
Array ( [Peter] => 35 [Ben] => 37 [Joe] => 43 )
-----------------------------------------

:: array_count_values() function ::
Array ( [A] => 2 [Cat] => 1 [Dog] => 2 )
-----------------------------------------

:: array_diff() function ::
Array ( [d] => yellow )
-----------------------------------------

:: array_fill() function ::
Array ( [3] => blue [4] => blue [5] => blue [6] => blue )
Array ( [0] => red )
-----------------------------------------

:: array_merge() function ::
Array ( [0] => red [1] => green [2] => blue [3] => yellow )
-----------------------------------------

:: array_shift() function ::
red
Array ( [b] => green [c] => blue )
-----------------------------------------

:: array_pop() function ::
Array ( [0] => red [1] => green )
-----------------------------------------

Object cloning
Inheritance
Interfaces
Abstract classes
Namespaces

15 Essential CSS Questions:

1. Which of the following is NOT a valid border-style property value?

dotted
inset
glazed
groove
solid

Ans: glazed

2. Which of the following is NOT a valid CSS length unit?

cm
dm
em
mm

Ans: dm
cm and mm are absolute length units. em is a font-relative length.

3. What is the CSS selector which allows you to target every element in a web page?

Ans: The universal selector (*).

4. Which CSS property allows you to hide an element but still maintain the space it occupies in the web page?

Ans: visibility or opacity

There are several ways to hide an HTML element with CSS.
Setting the visibility property of the element to hidden will hide the element. The element will still occupy space equal to its geometric size in the web page. For example, if the hidden element’s dimensions are 100x100px, you will see an empty 100x100px space in the area where the element is located. Hiding an element can also be accomplished by assigning opacity: 0 to an element.
Hiding an element without maintaining the space it occupies in the web page can be done by setting the element’s display property to none. Setting display to none renders the element as though it doesn’t exist.

5. There are 16 basic color keywords in CSS. Which of the following are NOT basic color keywords?

olive
fuchsia
cyan
aqua
maroon

Ans: cyan
cyan is a valid color keyword. But it’s not one of the basic color keywords.

6. The font-style CSS property has four different valid values. Three of these values are inherit, normal, and italic. What is one other valid value?

Ans: oblique

7. Which of the following two selectors has a higher CSS specificity?

Selector 1:

#object h2::first-letter

Selector 2:

body .item div h2::first-letter:hover

Ans: Selector 1: #object h2:first-letter

The specificity value of Selector 1 is 102. The specificity value of Selector 2 is 24.

8. What is the ideal order of the following pseudo-class selectors in a stylesheet?

:active
:hover
:link
:visited

Ans:

:link
:visited
:hover
:active

9. Which of the following CSS properties DOES NOT influence the box model?

content
padding
margin
outline
border

Ans: outline

The outline created with the outline properties is drawn “over” a box, i.e., the outline is always on top, and does not influence the position or size of the box, or of any other boxes. Therefore, displaying or suppressing outlines does not cause reflow or overflow.

10. When using media queries, which of the following is NOT a valid media type?

tv
all
voice
print
braille
tty
embossed

Ans: voice

voice is not a valid media type. Though there is a speech media type.

11. There are five generic font family values that can be assigned to the font-family property. Three of them are listed below. What are the other two generic font family values?

serif
sans-serif
monospace
?
?

Ans:

cursive
fantasy

12. What is the color keyword that will always be equal to the calculated color property value of the selected element/elements?

Ans: currentColor

Below is an example where the background-color and the border color will be equal to the color property value of .box elements:

.box {
  color: green;
  background-color: currentColor;
  border: 1px dashed currentColor;
}

The benefit of using the currentColor keyword is that we only need to change the color value in one place. We can just change the value of the color property, and the change will cascade to the other properties. This keyword works much the same way as CSS variables.

13. Which of the following is NOT a valid CSS unit?

ch
turn
px
ems
dpcm
s
hz
rem

Ans: ems

ch and rem are font-relative length units.
turn is an angle unit.
px is an absolute length unit.
dpcm is a resolution unit.
s is a time unit.
hz is a frequency unit.

14. Which of the following color keywords has NOT yet been proposed in a W3C specification?

blanchedalmond
dodgerblue
peachpuff
orchidblack
navajowhite
tomato

Ans: orchidblack

15. What is the CSS at-rule that can allow you to define the character encoding of a stylesheet?

Ans: @charset

UTF-8 should always be used as your CSS file’s character encoding. If this is the case, then you don’t need to declare a @charset rule.

How to run the multiple jquery methods within a single statement

In JQuery, this activity is called as chaining which means you can chain together actions/methods. Below snippet is the example of Jquery Chaining.

<script>
$(document).ready(function(){
 $("button").click(function(){
 $("#p1").css("color", "red").slideUp(2000).slideDown(2000);
 });
});
</script>

Libraries.io monitors 834,365 open source libraries across 29 different package managers.

What are all the essential topics in PHP for learning?

How to install and configure PHP on IIS 8 in Windows 8

What is IIS (Internet Information Services)?

Steps to integrate Yamm mega menu into your own bootstrap website

Website is broken in IE due to "SEC7113: CSS was ignored due to mime type mismatch"

List of Arrays Functions and Examples in PHP

What are all the OOP Features in PHP?

15 Essential CSS Questions:

How to run the multiple jquery methods within a single statement

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