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How to pop an alert message box using PHP ?
  • Last Updated : 27 Sep, 2019

An alert box is used in the website to display a warning message to the user that they have entered the wrong value other than what is required to fill in that position. An alert box can still be used for friendlier messages. The alert box gives only one button “OK” to select and proceed.
The alert message just like a pop-up window on the screen. Using this you can alert to the user with some information and message. PHP doesn’t support alert message box because it is a server-side language but you can use JavaScript code within the PHP body to alert the message box on the screen.

Syntex:

alert("Message")

Program 1: PHP program to pop up an alert box on the screen.




<?php
// PHP program to pop an alert
// message box on the screen
  
// Display the alert box 
echo '<script>alert("Welcome to Geeks for Geeks")</script>';
  
?>

Output:

Program 2: PHP program to pop up an alert box on the screen.




<?php
// PHP program to pop an alert
// message box on the screen
  
// Function defnition
function function_alert($message) {
      
    // Display the alert box 
    echo "<script>alert('$message');</script>";
}
  
  
// Function call
function_alert("Welcome to Geeks for Geeks");
  
?>

Output:

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