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29 October, 2018

PHP के Variables create करने से पहले उसके कुछ नियम समझे |

 Programing Coderfunda     October 29, 2018     php     No comments   


PHP के Variables create करने से पहले उसके कुछ नियम समझे |

Rules for PHP Variables

  • PHP का variable बनाने के लिए शुरुआत में $ (dollar) sign का इस्तेमाल किया जाता है |
  • $ sign के बाद variable underscore(_) या किसी भी letter(A-Z, a-z) से start किया जाता है | For eg. $var, $_var
  • किसी भी numeric value से variable की शुरुआत नहीं होती | For eg. $123var
  • Variable alphanumeric भी होता है | For eg. $var123
  • PHP Language ये Variable के बारे में एक case-sensitive language है | यहाँ पर $a और $A ये दोनों अलग-अलग variables है |

Variable Initialization

Source Code :
<?php    $a = 2;        //Integer  $b = "c";      //Character  $c = 2.5;      //Double  $d = "Hello";  //String  $e = true;     //Boolean  $f = null;     //NULL    ?>  
Variable ये एक data को store करने का माध्यम है | program पर सभी प्रकार के data types को store किया गया है

Output for above Example

Source Code :
<?php    echo $a . "<br/>";  echo $b . "<br/>";  echo $c . "<br/>";  echo $d . "<br/>";  echo $e . "<br/>";  echo $f ;    ?>  
Output :
2  c  2.5  Hello  1  

Variables Concatenation

PHP में एक variable को दुसरे variable के साथ जोड़ा जाता है |
Source Code :
<?php  $var1 = "Hello";  $var2 = " World";    echo $var1 . $var2;   echo $var1 . "Friends";  ?>  
Output :
Hello WorldHelloFriends  

Concatenation Variables with HTML Tags

Source Code :
<?php  $var1 = "Hello";  $var2 = " World";    echo $var1 . $var2 . "<br />";  echo "<strong>" . $var1 . $var2 . "</strong>";  ?>  
Output :
Hello World  Hello World  

Variable Assigning Variable

यहाँ पर किसी variable की value किसी नए variable पर store की जा सकती है |
Source Code :
<?php  $var1 = "Hello";  $var2 = " World";    $var3 = $var1;  echo $var3;  ?>  
Output :
Hello  

Variable की value को बदला जा सकता है |
Source Code :
<?php  $var = "Hello World";  echo $var . "<br />";  $var = "Hello Friends";  echo $var . "<br />";  ?>  
Output :
Hello World  Hello Friends  

<script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script>

Variable Scopes

PHP के Variable को कहा पर declare किया जाता है | पर variables को access करने के लिए तीन scopes बनाये गए है |
  1. Local Variable
  2. Global Variable
  3. Static Variable

1. Local Variable

Local Variables सिर्फ function के अन्दर ही accessible होते है |
Source Code :
<?php  function func(){  $a = 10;   echo "Value of a : $a";  }  func(); //call function  echo "Value of a : $a"; //not accessible from outside function  ?>  
Output :
Value of a : 10  Notice: Undefined variable: a in E:\xampp\htdocs\Variables.php on line 8  Value of a :  

2. Global Variable

Global Variables; function के outside से access किये जाते है |
Source Code :
<?php  $a = 10;  function func(){   echo "Value of a : $a"; //not accessible from inside function  }  func(); //call function   echo "Value of a : $a";  ?>  
Output :
Notice: Undefined variable: a in E:\xampp\htdocs\Variables.php on line 4  Value of a : Value of a : 10  

Variable Using global Keyword

Global Variables function के outside से access किये जाते है | लेकिन वो function के लिए accessible नहीं होते |
जब global keyword के साथ variables; function के अन्दर लिखे जाते है तो वो variables function के लिए भी accessible रहते है |
Source Code :
<?php  $a = 2;  $b = 4;  function func(){   global $a, $b;  }  func();  echo "Value of a : $a <br />";  echo "Value of b : $b <br />";  ?>  
Output :
Value of a : 2   Value of b : 4  

3. Static Variable

Without Static Variable
जब function में बिना static variable का इस्तेमाल किया जाता है तो,
जब func() call किया जाता है, तब उसमे जो variables होते है, वो एक बार ही initialized होते है | उसके बाद वो destroy हो जाते है |
Source Code :
<?php  function func(){      $a = 1;      echo "Value of a : $a <br />";      $a++;  }  func();  func();  ?>  
Output :
Value of a : 1  Value of a : 1  

With Static Variable
जब function में static variable का इस्तेमाल किया जाता है तो,
जब func() call किया जाता है, तब उसमे जो variables होते है, वो अपनी values को hold करके रखते | ये variables destroyed नहीं होते |
Source Code :
<?php  function func(){      static $a = 1;      echo "Value of a : $a <br />";      $a++;  }  func();  func();  ?>  
Output :
Value of a : 1  Value of a : 2  

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28 October, 2018

Bootstrap Grids

 Programing Coderfunda     October 28, 2018     Bootstrap     No comments   

Bootstrap Grid System

Bootstrap's grid system allows up to 12 columns across the page.
If you do not want to use all 12 columns individually, you can group the columns together to create wider columns:
span 1span 1span 1span 1span 1span 1span 1span 1span 1span 1span 1span 1
 span 4 span 4 span 4
span 4span 8
span 6span 6
span 12
Bootstrap's grid system is responsive, and the columns will re-arrange automatically depending on the screen size.

Grid Classes

The Bootstrap grid system has four classes:
  • xs (for phones - screens less than 768px wide)
  • sm (for tablets - screens equal to or greater than 768px wide)
  • md (for small laptops - screens equal to or greater than 992px wide)
  • lg (for laptops and desktops - screens equal to or greater than 1200px wide)
The classes above can be combined to create more dynamic and flexible layouts.


Basic Structure of a Bootstrap Grid

The following is a basic structure of a Bootstrap grid:

<div class="row">
  <div class="col-*-*"></div>
  <div class="col-*-*"></div>
</div>
<div class="row">
  <div class="col-*-*"></div>
  <div class="col-*-*"></div>
  <div class="col-*-*"></div>
</div>
<div class="row">
  ...
</div>

First; create a row (<div class="row">). Then, add the desired number of columns (tags with appropriate .col-*-*classes). Note that numbers in .col-*-* should always add up to 12 for each row.
Below we have collected some examples of basic Bootstrap grid layouts.
Read More
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Bootstrap Grids

 Programing Coderfunda     October 28, 2018     Bootstrap     No comments   

Bootstrap Grid System

Bootstrap's grid system allows up to 12 columns across the page.
If you do not want to use all 12 columns individually, you can group the columns together to create wider columns:
span 1span 1span 1span 1span 1span 1span 1span 1span 1span 1span 1span 1
 span 4 span 4 span 4
span 4span 8
span 6span 6
span 12
Bootstrap's grid system is responsive, and the columns will re-arrange automatically depending on the screen size.

Grid Classes

The Bootstrap grid system has four classes:
  • xs (for phones - screens less than 768px wide)
  • sm (for tablets - screens equal to or greater than 768px wide)
  • md (for small laptops - screens equal to or greater than 992px wide)
  • lg (for laptops and desktops - screens equal to or greater than 1200px wide)
The classes above can be combined to create more dynamic and flexible layouts.


Basic Structure of a Bootstrap Grid

The following is a basic structure of a Bootstrap grid:

<div class="row">
  <div class="col-*-*"></div>
  <div class="col-*-*"></div>
</div>
<div class="row">
  <div class="col-*-*"></div>
  <div class="col-*-*"></div>
  <div class="col-*-*"></div>
</div>
<div class="row">
  ...
</div>

First; create a row (<div class="row">). Then, add the desired number of columns (tags with appropriate .col-*-*classes). Note that numbers in .col-*-* should always add up to 12 for each row.
Below we have collected some examples of basic Bootstrap grid layouts.
Read More
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Bootstrap Get Started

 Programing Coderfunda     October 28, 2018     Bootstrap, Bootstrap3     No comments   

Bootstrap Get Started


What is Bootstrap?

  • Bootstrap is a free front-end framework for faster and easier web development
  • Bootstrap includes HTML and CSS based design templates for typography, forms, buttons, tables, navigation, modals, image carousels and many other, as well as optional JavaScript plugins
  • Bootstrap also gives you the ability to easily create responsive designs

What is Responsive Web Design?

Responsive web design is about creating web sites which automatically adjust themselves to look good on all devices, from small phones to large desktops.

Bootstrap History

Bootstrap was developed by Mark Otto and Jacob Thornton at Twitter, and released as an open source product in August 2011 on GitHub.
In June 2014 Bootstrap was the No.1 project on GitHub!

Why Use Bootstrap?

Advantages of Bootstrap:
  • Easy to use: Anybody with just basic knowledge of HTML and CSS can start using Bootstrap
  • Responsive features: Bootstrap's responsive CSS adjusts to phones, tablets, and desktops
  • Mobile-first approach: In Bootstrap 3, mobile-first styles are part of the core framework
  • Browser compatibility: Bootstrap is compatible with all modern browsers (Chrome, Firefox, Internet Explorer, Edge, Safari, and Opera)

Where to Get Bootstrap?

There are two ways to start using Bootstrap on your own web site.
You can:
  • Download Bootstrap from getbootstrap.com
  • Include Bootstrap from a CDN

Downloading Bootstrap

If you want to download and host Bootstrap yourself, go to getbootstrap.com, and follow the instructions there.
Read More
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Bootstrap Get Started

 Programing Coderfunda     October 28, 2018     Bootstrap, Bootstrap3     No comments   

Bootstrap Get Started


What is Bootstrap?

  • Bootstrap is a free front-end framework for faster and easier web development
  • Bootstrap includes HTML and CSS based design templates for typography, forms, buttons, tables, navigation, modals, image carousels and many other, as well as optional JavaScript plugins
  • Bootstrap also gives you the ability to easily create responsive designs

What is Responsive Web Design?

Responsive web design is about creating web sites which automatically adjust themselves to look good on all devices, from small phones to large desktops.

Bootstrap History

Bootstrap was developed by Mark Otto and Jacob Thornton at Twitter, and released as an open source product in August 2011 on GitHub.
In June 2014 Bootstrap was the No.1 project on GitHub!

Why Use Bootstrap?

Advantages of Bootstrap:
  • Easy to use: Anybody with just basic knowledge of HTML and CSS can start using Bootstrap
  • Responsive features: Bootstrap's responsive CSS adjusts to phones, tablets, and desktops
  • Mobile-first approach: In Bootstrap 3, mobile-first styles are part of the core framework
  • Browser compatibility: Bootstrap is compatible with all modern browsers (Chrome, Firefox, Internet Explorer, Edge, Safari, and Opera)

Where to Get Bootstrap?

There are two ways to start using Bootstrap on your own web site.
You can:
  • Download Bootstrap from getbootstrap.com
  • Include Bootstrap from a CDN

Downloading Bootstrap

If you want to download and host Bootstrap yourself, go to getbootstrap.com, and follow the instructions there.
Read More
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Bootstrap 3 Tutorial

 Programing Coderfunda     October 28, 2018     Bootstrap, Bootstrap3     No comments   

Bootstrap 3 Tutorial
Bootstrap is the most popular HTML, CSS, and JavaScript framework for developing responsive, mobile-first websites.
Bootstrap is completely free to download and use!

Try it Yourself Examples

This Bootstrap tutorial contains hundreds of Bootstrap examples.
With our online editor, you can edit the code, and click on a button to view the result.

<div class="jumbotron text-center">
  <h1>My First Bootstrap Page</h1>
  <p>Resize this responsive page to see the effect!</p> 
</div>

<div class="container">
  <div class="row">
    <div class="col-sm-4">
      <h3>Column 1</h3>
      <p>Lorem ipsum dolor..</p>
      <p>Ut enim ad..</p>
    </div>
    <div class="col-sm-4">
      <h3>Column 2</h3>
      <p>Lorem ipsum dolor..</p>
      <p>Ut enim ad..</p>
    </div>
    <div class="col-sm-4">
      <h3>Column 3</h3> 
      <p>Lorem ipsum dolor..</p>
      <p>Ut enim ad..</p>
    </div>
  </div>
</div>
Read More
  • Share This:  
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Bootstrap 3 Tutorial

 Programing Coderfunda     October 28, 2018     Bootstrap, Bootstrap3     No comments   

Bootstrap 3 Tutorial
Bootstrap is the most popular HTML, CSS, and JavaScript framework for developing responsive, mobile-first websites.
Bootstrap is completely free to download and use!

Try it Yourself Examples

This Bootstrap tutorial contains hundreds of Bootstrap examples.
With our online editor, you can edit the code, and click on a button to view the result.

<div class="jumbotron text-center">
  <h1>My First Bootstrap Page</h1>
  <p>Resize this responsive page to see the effect!</p> 
</div>

<div class="container">
  <div class="row">
    <div class="col-sm-4">
      <h3>Column 1</h3>
      <p>Lorem ipsum dolor..</p>
      <p>Ut enim ad..</p>
    </div>
    <div class="col-sm-4">
      <h3>Column 2</h3>
      <p>Lorem ipsum dolor..</p>
      <p>Ut enim ad..</p>
    </div>
    <div class="col-sm-4">
      <h3>Column 3</h3> 
      <p>Lorem ipsum dolor..</p>
      <p>Ut enim ad..</p>
    </div>
  </div>
</div>
Read More
  • Share This:  
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