Definition :
The getTraceAsString() method returns a stack trace in the form of a string.
Stack traces contain information about all of the functions that are running at a given moment. The stack trace provided by this method has information about the stack at the time that the exception was thrown.
$exception->getTraceAsString()
No parameter is required.
Returns the Exception stack trace as a string.
Given below example Output the stack trace:
Output : #0 C:\xampp\htdocs\php\php Exception\getTraceAsString().php(11): myFunction(5) #1 {main}