! Programming and Math: PHP: Declaring and Printing Variables

So i decided to go ahead and learn how to declare and display my variables in PHP. First thing i noticed is when declaring a variable you do not need to specify what type of data your variable is. Such as an integer, string, character, etc. Which i found really weird, but I got use to it. Next thing i noticed was I had a hard time using \n to create a newline in PHP. Which is a command. I just found it was a syntax error(aka parse error in PHP). But anyhow here is some code I created in order to test some things. Feel free to read the English parts of my code for non programmers. It might amuse you.

Source Code
----------------------------------------------------------------------------------------------------------------------------

<html>

 <body>Welcome to my PHP Test Page
 <?php /*Declaring and printing variables*/
 $var = 5;
 $name = "Hello World";
 $test = array("Hello","this","is","an","array");
 ?>

 
 Testing out, printing declared variables 

 printing 5 to the screen from variable <?php print('$var ');?> 


 <?php print("$var");?> 

 Well that seemed to have worked out nicely, Now wth is the code to print print a newline. 
 instead of having to use HTML's "br" to create a new line out of my php scope 


 Time to print a string using echo and print command 

 <?php echo "$name"; print(" $name "); ?> 

 Time to print an array 

 <?php print_r($test); ?> 

 Well that was really unexpected so much for that command being of any use. 
 Maybe i used it wrong oh well time to find another way to print an array. 

 <?php for($i = 0; $i<5; $i++){print("$test[$i] ");} ?> 


 Well that seemed to have worked out a lot nicer. Using a loop and accessing each index of the array was nicer then print_r. 
 I think I will end the tests for this blog. Thanks for reading! 


 

</body>
</html>

--------------------------------------------------------------------------------------------------------------------------
End of Source Code

What is actually displayed here. So you can see what exactly I did.

Welcome to my PHP Test Page
Testing out, printing declared variables
printing 5 to the screen from variable $var

5

Well that seemed to have worked out nicely, Now wth is the code to print print a newline.
instead of having to use HTML's "br" to create a new line out of my php scope

Time to print a string using echo and print command
Hello World Hello World

Time to print an array
Array ( [0] => Hello [1] => this [2] => is [3] => an [4] => array )
Well that was really unexpected so much for that command being of any use.
Maybe i used it wrong oh well time to find another way to print an array.
Hello this is an array

Well that seemed to have worked out a lot nicer. Using a loop and accessing each index of the array was nicer then print_r.
I think I will end the tests for this blog. Thanks for reading!