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V8Js is a PHP extension that allows embedding V8 JavaScript engine into PHP. The V8JsException class represents exceptions thrown by the V8Js extension.

The getJsSourceLine method of the V8JsException class is used to retrieve the line of JavaScript source code that caused the exception. This method can be called on an instance of V8JsException and it returns the line number along with the corresponding source code line.

To use the getJsSourceLine method, you need to catch a V8JsException and then call the method on the caught exception object. For example:

php
try {
// Code that may throw a V8JsException
} catch (V8JsException $e) {
$line = $e->getJsSourceLine();
echo "Exception occurred at line $line";
// Handle the exception or produce a relevant error message
}


In the above example, if a V8JsException is thrown, the caught exception object $e can be used to call the getJsSourceLine method and retrieve the line number where the exception occurred. This line number can be displayed or used for further error handling.

Please note that the getJsSourceLine method only works if the V8Js extension is properly installed and configured in your PHP environment.