Switch is another type of conditional, best used in place of a long if-elseif-else conditional.
Switch statement selects one of many blocks of code to be executed, by comparing the value of a single variable with a succession of values.

  - Syntax:
switch ($variable) {
  case 'value1':
    // Do this
    break;
  case 'value2':
    // Run other code
    break;
  default:
    // if nothing else is true, do this
}
- The value of the $variable within the brackets is the item being tested.
- The switch conditional compares the value of $variable with the values for each case. When it finds a match, the block of code associated with that case is executed, up until the break. If no match is found, the default statement is executed, assuming it exists (it's optional).
The switch conditional can only check a variable's value for equality.

The break statements are optional, but if you don't use them, PHP will continue to evaluate the next case and may execute some code further down the case tree.
The default statement is used if no match is found.


- Example:
<?php
$num = 2;

switch($num) {
  case 1:
    echo 'Small number';
    break;
  case 2:
    echo 'Medium number';
    break;
  case 3:
    echo 'Bigger number';
    break;
  default:
    echo 'No number between 1 and 3';
}
?>
This code will output: "Medium number".

• Another example, with a string as the value to be compared.
<?php
switch($today) {
  case 'Monday':
    echo 'Today is Monday, I go to school.';
    break;
  case 'Tuesday':
    echo 'Tuesday, lot of work to do.';
    break;
  case 'Sunday':
    echo 'Sunday, good day for rest.';
    break;
  default:
    echo 'A normal day';
}
?>

Daily Test with Code Example

HTML
CSS
JavaScript
PHP-MySQL
Which tag is used to add definition lists into a <dl> element?
<dt> <dd> <li>
<dl>
 <dt>HTML</dt>
  <dd> - Hyper Text Markup Language</dd>
  <dd> - Language for web pages</dd>
</dl>
Which CSS property can hide an element on page, letting an empty space in its place?
display position visibility
#id {
  visibility: hidden;
}
Click on the event which is triggered when the mouse clicks on an object.
onclick onmouseover onfocus
document.getElementById("id").onclick = function(){
  alert("http://CoursesWeb.net/");
}
Indicate the PHP variable that contains the contents of both $_GET, $_POST, and $_COOKIE arrays.
$_SESSION $_GET $_REQUEST
if(isset($_REQUEST["id"])) {
  echo $_REQUEST["id"];
}
PHP Switch Case

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