PHP is quite a simple language with roots in C and Perl, yet it looks more like Java. It is also very flexible, but there are a few rules that you need to learn about its syntax and structure
Semicolons
$x += 10;
The $ symbol
<?php
$mycounter = 1;
$mystring = "Hello";
$myarray = array("One", "Two", "Three");
?>
Variables
String variables
$username = “Fred Smith”;
first PHP program
<?php
$username = "Fred Smith";
echo $username;
echo "<br>";
$current_user = $username;
echo $current_user;
?>