How can PHP beginners define variables through the URL in a webpage?

To define variables through the URL in a webpage, PHP beginners can use the $_GET superglobal array to access values passed in the URL query string. By appending variables to the URL using the format "?variable_name=value", PHP can retrieve these values and assign them to variables in the script. This allows for dynamic content generation based on user input through the URL. 

<?php
// Check if a variable is passed through the URL
if(isset($_GET['variable_name'])){
    // Assign the value to a variable
    $variable_name = $_GET['variable_name'];
    
    // Now you can use $variable_name in your code
    echo "The value passed through the URL is: " . $variable_name;
}
?>

Keywords

PHP variables URL webpage beginners

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