Simulating Foreach

Objectives:

• To predict output in sight reading only
• To challenge existing knowledge in PHP

For this exercise, predict the output of given codes without seeking the console first. This skill is a must to learn when aiming to be a developer.

1. What do you think will be the output of the code below? Try to guess before running it!

   $list = array(2,4,6,8);
   foreach($list as $key => $value)
   {
    echo $key . " - " . $value ."<br />";
   }
   

2. What would be the output of the following code? Try to guess before running it!

   $list = array(2,4,6,8);
   foreach($list as $value)
   {
    echo $value ."<br />";
   }
   

3. What will be the output of this? Again, guess the output before running the code.

   $fruits= array("A" => "Apple", "B" => "Banana");
   foreach($fruits as $key => $value)
   {
    echo $key . " - " . $value ."<br />";
   }
   

4. How about the following code? Try to guess the output of the code before running it!

   $fruits= array("A" => "Apple", "B" => "Banana");
   foreach($fruits as $key => $value)
   {
    echo $value ."<br />";
   }
   

5. Let's change the echo statement. Make a guess!

   $fruits= array("A" => "Apple", "B" => "Banana");
   foreach($fruits as $key => $value)
   {
    echo $key ."<br />";
   }
   

6. Okay. Now let's make it more challenging. What would be the output of the following code? ``` $plots = array( array("a1", "a2",...