Display a message with PHP?

I know that to show a welcome message, show an error or alert popup JavaScript is needed but is possible to use PHP instead of JavaScript to show welcome message of popup some text? Sorry just started learning PHP code and I need help with this

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What you are talking about is called PHP echo() Function and it displays a message however to make that message popup you need JavaScript.

Try this:

PHP Code:

if (here goes PHP conditional) {
    echo "<script>alert('Correct.');</script>";
} else {
    echo "<script>alert('Wrong.');</script>";
} 


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I am not a PHP expert but I think you should user PHP error not echo!

PHP Code:

if //something 
{
error("this is an error message");
} 


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PHP echo and print Statements. echo and print are more or less the same. They are both used to output data to the screen. The differences are small: echo has no return value while print has a return value of 1 so it can be used in expressions.

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Here is my PHP code:

<?php
header("Location:form.php");

echo '<script language="javascript">';
echo 'alert(message successfully sent)'; //not showing an alert box.
echo '</script>';
exit;
?>

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use this code echo '<script language="javascript">'; echo 'alert("message successfully sent")'; echo '</script>';. The problem was: you missed "; It should be alert

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