What are the differences between Java and JavaScript in terms of usage in PHP?

Java and JavaScript are both programming languages, but they have different use cases and syntax. Java is typically used for backend development, while JavaScript is primarily used for frontend development. In PHP, you can interact with Java through the Java Bridge extension, allowing you to call Java classes and methods from your PHP code. On the other hand, you can incorporate JavaScript into your PHP application by using inline JavaScript code within your HTML output or by including external JavaScript files.

// Example of using Java in PHP
$java = new Java('path/to/java/bridge.jar');
$javaClass = $java->getClass('com.example.JavaClass');
$result = $javaClass->javaMethod();

// Example of using JavaScript in PHP
echo '<script>alert("Hello, world!");</script>';
echo '<script src="path/to/external/script.js"></script>';