PHP Syntax and Comments

Statements end with a semicolon. Keywords and function names are not case-sensitive, but variable names are. Comments can use //, # or /* */.

ExamplePHP

<?php
// single-line comment
# also a single-line comment
/* multi-line
   comment */
echo "One\n";
ECHO "Keywords are not case-sensitive\n";
$color = "red";
echo "My car is " . $color . "\n";
echo "My car is $color\n";

Output

One
Keywords are not case-sensitive
My car is red
My car is red

Quick check

Which operator joins strings in PHP?

+.&

Finish the quick check (and any code exercise) to complete this lesson, or mark it done yourself.

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