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Comments in PHP

Comments in PHP

A comment in PHP code is a line that is not executed as a part of the program. Its only purpose is to be read by someone who is looking at the code.
Comments can be used to:
  • Let others understand your code
  • Remind yourself of what you did - Most programmers have experienced coming back to their own work a year or two later and having to re-figure out what they did. Comments can remind you of what you were thinking when you wrote the code
Syntax for single-line comments:

Example 1:


<!DOCTYPE html>
<html>
<body>

<?php
// This is a single-line comment
# This is also a single-line comment?>

</body>
</html>

Example 2:

<!DOCTYPE html>
<html>
<body>

<?php
/*
This is a multiple-lines comment block
that spans over multiple
lines
*/
?>

</body>
</html>


Example 3:

<!DOCTYPE html>
<html>
<body>

<?php
// You can also use comments to leave out parts of a code line$x = 5 /* + 15 */ + 5;
echo $x;
?>

</body>
</html>

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