jason

Always start php files/scripts with <?php and end them with ?>.You may also use <? to open them but it's not recommended. I only do it to keep this tutorial shorter and quicker to write.


*Note the semi-colon at the end of most lines.*


To print text simply use echo.

Example: This will write "Hello" to your screen.

 <?



 echo "Hello";



 ?>



 

Comments can be created by using //Comment here. Or if using multiple lines /* Comment here */.


To set a variable we use $.

$variable_name = "content here";

Example: This will also write "Hello" to your screen.

 <?



 $myvariable = "Hello";



 echo $myvariable; //Echo the variable



 ?>



 

To echo multiple variables/strings without creating a new echo each time simply use a period.

Example: This will write "Hello and Welcome to my site."

 <?



 $myvar = "Welcome";



 $var2 = "Hello";





 echo $var2 . " and " . $myvar . " to my site.";



 ?>



 

If/Else statements. Take note of the curly braces!

Example:If number = 1 it will echo "The Number is 1", if it isn't it will echo "The number is not 1".

 <?





 $number = '2';



 if($number == '1'){ //Curly Braces used for code to be executed



 	echo "The number is 1!";



 } //Make sure Curly Braces are closed



 else



 {



 	echo "The number is NOT 1!";



 }





 ?>



 

Functions. Functions must be called in order to be executed.

 <?



 function echo_text(){ //Our Function. Take note of curly braces.



 echo "Hello Again";



 echo "<br />"; //Line Break



 echo "Bye!";



 }



 

 echo_text(); //Call to the function



 ?>