Comments in PHP

A comment in PHP code is a line that is not read/executed as 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 what you are doing
  • 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
<?php // This is a single-line comment

# This is also a single-line comment

/*
This is a multiple-lines comment block
that spans over multiple
lines
*/// You can also use comments to leave out parts of a code line
$x = 5 /* + 15 */ + 5;   //here,  /*+15*/  it is comment part  so we just add 5+5

echo $x;?>
Output:
10

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