single
Basic Math Operations
メニューを表示するにはスワイプしてください
Numbers
You already know how to use the echo function to output text. But what about numbers and mathematical calculations?
You can also use echo to display these. When you want to output the result of a mathematical expression, there's no need to use quotes (" " or ' '). Simply write the expression directly inside echo, and it will be evaluated and displayed on the screen.
main.php
12345<?php echo 'Two'; // This outputs the string "Two" echo '2'; // This outputs the string "2" echo 2; // This outputs the number 2 ?>
If you print a number and a string to the console, they will look the same, which is something they have in common. However, there are things we can do with numbers that we can't do with strings, and vice versa. For instance, we can apply mathematical operations to numbers.
Math Operations
Almost no program can do without mathematical calculations, so PHP supports the following mathematical operations:
The code below performs basic arithmetic operations on different numbers and outputs the results to the screen. Output the result of adding 5 and 3:
main.php
123<?php echo 5 + 3; // Outputs: 8 ?>
Output the result of subtracting 7 from 10:
main.php
123<?php echo 10 - 7; // Outputs: 3 ?>
Output the result of dividing 15 by 3:
main.php
123<?php echo 15 / 3; // Outputs: 5 ?>
Output the result of multiplying 4 by 6:
main.php
123<?php echo 4 * 6; // Outputs: 24 ?>
Output the remainder of dividing 17 by 5:
main.php
123<?php echo 17 % 5; // Outputs: 2 ?>
スワイプしてコーディングを開始
Here's your assignment: compute the following and print the outcome:
1512 divided by 27.
解答
実践的な練習のためにデスクトップに切り替える下記のオプションのいずれかを利用して、現在の場所から続行するフィードバックありがとうございます！
single
AIに質問する
AIに質問する
何でも質問するか、提案された質問の1つを試してチャットを始めてください
