How to pop an alert message box using PHP?

How to pop an alert message box using PHP?

Solution 1:

You could use Javascript:

// This is in the PHP file and sends a Javascript alert to the client
$message = "wrong answer";
echo "<script type='text/javascript'>alert('$message');</script>";

Solution 2:

Create function for alert

<?php
alert("Hello World");

function alert($msg) {
    echo "<script type='text/javascript'>alert('$msg');</script>";
}
?>

Solution 3:

PHP renders HTML and Javascript to send to the client's browser. PHP is a server-side language. This is what allows it do things like INSERT something into a database on the server.

But an alert is rendered by the browser of the client. You would have to work through javascript to get an alert.

Solution 4:

I have done it this way:

<?php 
$PHPtext = "Your PHP alert!";
?>

var JavaScriptAlert = <?php echo json_encode($PHPtext); ?>;
alert(JavaScriptAlert); // Your PHP alert!