Issue
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<h3>MAD LIBS</h3>
<?php
if (isset($_POST['submit'])) {
$color = $_POST['color'];
$pluralNoun = $_POST['pluralNoun'];
$celebrity = $_POST['celebrity'];
}
echo "Roses are " . $color;
echo $pluralNoun . " are Blue";
echo "I love " . $celebrity;
?>
<form action="site.php" method="post">
Color: <input type="text" name="color"> <br>
Plural Noun: <input type="text" name="pluralNoun"> <br>
Celebrity: <input type="text" name="celebrity"> <br>
<input type="submit" name="submit"> <br>
</form>
<!-- <?php
if (isset($_POST['color']) && isset($_POST['pluralNoun']) && isset($_POST['celebrity'])) :
echo "Roses are " . $_POST['color'] . "<br>";
echo $_POST['pluralNoun'] . " are Blue <br>";
echo "I love " . $_POST['celebrity'];
endif;
?> -->
</body>
</html>
Hey guys, I'm completly new to PHP. Can you guys help me how to get this code working? The bottom php code that i commented out is working. But I wanted to use the first php code so i can call ($_POST['']) using variables. But in the website it shows:
Warning: Undefined variable $color in C:\xampp\htdocs\webProgramming\site.php on line 16 Roses are Warning: Undefined variable $pluralNoun in C:\xampp\htdocs\webProgramming\site.php on line 17 are Blue Warning: Undefined variable $celebrity in C:\xampp\htdocs\webProgramming\site.php on line 18 I love
I'm sorry for my bad english, it's not my first langauge. I hope you understand what my questions mean.
Solution
For top part of the code you have 2 solutions
Put all in
ifstatementif (isset($_POST['submit'])) { $color = $_POST['color']; $pluralNoun = $_POST['pluralNoun']; $celebrity = $_POST['celebrity']; echo "Roses are " . $color ."<br>"; echo $pluralNoun . " are Blue <br>"; echo "I love " . $celebrity ."<br>"; }Or you can use ternary
if (isset($_POST['submit'])) { $color = $_POST['color']; $pluralNoun = $_POST['pluralNoun']; $celebrity = $_POST['celebrity']; } echo "Roses are " . ($color ?? "[valu not set]") ."<br>"; echo ($pluralNoun ?? "[valu not set]") . " are Blue" ."<br>"; echo "I love " . ($celebrity ?? "[valu not set]") ."<br>";
Answered By - Nebojsa Nebojsa
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