FirstPHP/form-multi-buttons-with-family.php at main · BaseMax/FirstPHP · GitHub

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<?php
// print count([1, 2]);

// $a = [1, 2, 3, 4];
// print count($a);

if (count($_POST) > 0) {
	// print_r($_POST);
	// exit();

	if (isset($_POST["family"])) {
		$family = trim($_POST["family"]);

		if (isset($_POST["send1"])) {
			header("Location: sender1.php?family1=$family");
			exit();
		}
		else if (isset($_POST["send2"])) {
			header("Location: sender2.php?family2=$family");
			exit();
		}
		else if (isset($_POST["send3"])) {
			header("Location: sender3.php?family3=$family");
			exit();
		} else {
			print "Error: one of buttons must to be click!";
		}
	} else {
		print "Error: family required!";
	}
}
?>
<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title></title>
</head>
<body>
	<form action="" method="POST">
		<b>Family:</b>
		<input type="text" name="family" required="">
		<br>
		<button name="send1">send 1</button>
		<button name="send2">send 2</button>
		<button name="send3">send 3</button>
	</form>
</body>
</html>