JS Lab 3

2026-03-06 21:27:16 -05:00
parent 1fdfbb1b4f
commit 41ebd4ac62
21 changed files with 1018 additions and 43 deletions
@@ -0,0 +1,64 @@
+<?php
+
+// All of the following will give the same result.
+echo 123 + 1;
+echo '<br>';
+echo "123" + 1;
+echo '<br>';
+echo "123" + "1";
+echo '<br><br>';
+
+// Arithmetic operators.
+echo '<strong>Arithmetic operators</strong><br>';
+echo 'Addition (+) ' . 1 + 2 . '<br>';
+echo 'Subtraction (-) ' . 2 - 1 . '<br>';
+echo 'Multiplication (*) ' . 2 * 2 . '<br>';
+echo 'Division (/) ' . 4 / 2 . '<br>';
+echo 'Modulus (%) ' . 4 % 2 . '<br>';
+$a = 1;
+$a++;
+echo 'Increment (++) ' . $a . '<br>';
+$a--;
+echo 'Decrement (--) ' . $a . '<br>';
+echo '<br>';
+
+// Assignment operators.
+echo '<strong>Assignment operators</strong><br>';
+$a = 2;
+echo $a . '<br>';
+$a += 2;
+echo $a . '<br>';
+$a -= 2;
+echo $a . '<br>';
+$a *= 2;
+echo $a . '<br>';
+$a /= 2;
+echo $a . '<br>';
+echo '<br>';
+
+// Comparison operators.
+echo '<strong>Comparison operators</strong><br>';
+$a = 1;
+$b = 2;
+$c = '2';
+
+echo ($a < $b) . '<br>';
+echo ($a > $b) . '<br>';
+echo ($a == $b) . '<br>';
+echo ($a != $b) . '<br>';
+echo ($b == $c) . '<br>';
+echo ($b === $c) . '<br>';
+echo '<br>';
+
+// Formatting numbers.
+echo '<strong>Formatting numbers</strong><br>';
+
+echo 'Round (2.49): ' . round(2.49) . '<br>';
+echo 'Number Format (21233122):' . number_format(21233122) . '<br>';
+echo 'Printf: ';
+$sub = 5;
+$tax = 0.65;
+printf('The subtotal is %u, making the tax
+%.2f.', $sub, $tax);
+echo '<br>';
+echo 'Mt Rand: ' . mt_rand(0, 100);