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--- php_variables [2024/10/06 05:10] – created appledog
+++ php_variables [2024/10/06 05:16] (current) – appledog
@@ Line 5: / Line 5: @@
 What's a variable and what can you do with it?
-<Code:PHP|abc.php>
+First, we already saw we can store something from readLine() in a variable:
+<Code:PHP>
+<?php
+	$n = readLine("What is your name? ");
+	$f = readLine("What is your favourite fruit? ");
+	echo "Hello, Mr. ";
+	echo $n . "!\n";
+	echo "Do you want to eat " . $f . "?\n";
+?>
+</Code>
+== Operations
+We can add variables together.
+<Code:PHP>
+<?php
+	$a = readLine("a = ");
+	$b = readLine("b = ");
+	echo $a . " + " . $b . " = " . $a+$b . "\n";
+?>
+</Code>
+== Testing variables with IF
+We can also determine what to do based on what's in a variable.
+<Code:PHP>
+<?php
+	$name = readLine("What is your name? ");
+	$fruit = readLine("What is your favourite fruit? ");
+	if ($fruit == "poo") {
+		echo "Ewwwwww!\n";
+		echo $name . " is bad!\n";
+	} else if ($fruit == "banana") {
+		echo "{$name} is good.\n";
+		echo "I also like {$fruit}. Yum!\n";
+	} else {
+		echo "Hello, {$name}.\n";
+	}
+?>
+</Code>
+== Integers
+We can also store numbers and do operations on those numbers.
+<Code:PHP>
 <?php
@@ Line 16: / Line 72: @@
 ?>
 </Code>