Answers - The Most Trusted Place for Answering Life's Questions

Animals & Plants Arts & Entertainment Auto Beauty & Health Books and Literature Business Electronics Engineering & Technology Food & Drink History Hobbies Jobs & Education Law & Government Math People & Society Science Social Studies Sports Travel & Places

0

AllQ&AStudy Guides

Best answer

printf ("square of %d is %d\n", $n, $n*$n);

Q: How do you get the square of an integer in PHP?

This answer is:

Related answers

printf ("square of %d is %d\n", $n, $n*$n);

View page

You cannot, you need PHP

Here is what I came up with, for you:

<?php

$to = 'nobody@example.com';

$subject = 'the subject';

$message = 'hello';

$headers = 'From: webmaster@example.com' . "\r\n" .

'Reply-To: webmaster@example.com' . "\r\n" .

'X-Mailer: PHP/' . phpversion();

mail($to, $subject, $message, $headers);

View page

PHP is processed on the server side, not the browser side. This means that any browser (including Safari), never actually opens a PHP file (unless it's loaded locally rather than served from the web, in which case it would be read as a plain text file). Instead, it receives the output from the server that contains the PHP file.

For example, if you have a PHP file that reads like this:

<?php echo "<html>\n<body>\nI am the lizard queen!\n</body>\n</html>"; ?>

Safari would actually see it as plain HTML, like this:

<html>

<body>

I am the lizard queen!

</body>

</html>

It would never actually see the PHP code itself.

View page

The easiest way to do this is with an exclusive-or operator, represented by the ^ symbol.

For example, 10 ^ 15 = 1010b ^ 1111b = 0101b

Here's a quick example script that would make use of it:

#!/usr/bin/php

<?php

if($argc != 2){ echo "gimme a number!\n"; exit;}

$x = $argv[1];

for($n = 0; 1 << $n <= $x; $n++);

$y = $x ^ ((1 << $n) - 1);

echo "The binary complement of $x = %y\n";

View page

for($rval = $n = intval($_GET['number']); $n > 2; $n--) $rval *= $n - 1;
echo $rval;

View page

Featured study guide

📓

See all Study Guides

✍️

Create a Study Guide

Search results

Trending Questions

Who was the First woman hung in the Arizona territory? Which of these would be indications that a given mountain range was not formed by subduction? What does iii over ooo brain teaser mean? What does GI over CCC hidden puzzles mean? Which organisms is most specialized? How do all of Newton's laws apply to the performance of my mousetrap car? How many times did Larry bird foul out in his nba career? How did the Panama Canal boost commerce? Why is the paper in a Hershey's Kiss called a niggly wiggly? What eye color do giraffes have? How can you spell cold with only 2 letters? How many times has Kobe Bryant fouled out of an NBA game? What is the difference between World Record and World Lead times in althletics? Is Venuses atmosphere so thick it never has a sunny day? Does Jerry Seinfeld have Parkinson's disease? What Bible verses begin with the letter O? How much would a 100 pound person weigh on Ceres? How many Hershey kisses will fit in a oz mason jar? What was Helen Keller's favorite color? What is 'India foxtrot Yankee Oscar uniform charlie alpha November uniform November delta echo romeo sierra tango alpha November delta tango hotel India sierra charlie Oscar papa Yankee alpha'?

Still have questions?

imp

Resources

Top Categories

Product

Company

Copyright ©2024 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.