PHP and MySQL Web Development 4th Ed-tqw-_darksiderg

The Exception Class
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In Listing 7.1, you can see that we used a number of methods of the Exception class,
which we discuss shortly.The result of running this code is shown in Figure 7.1.
Figure 7.1
This catch block reports the exception error message and notes
where it occurred.
In the sample code, you can see that we raise an exception of class Exception.This builtin
class has methods you can use in the catch block to report a useful error message.
The Exception Class
PHP has a built-in class called Exception.The constructor takes two parameters, as we
discussed previously: an error message and an error code.
In addition to the constructor, this class comes with the following built-in methods:
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getCode()—Returns the code as passed to the constructor
getMessage()—Returns the message as passed to the constructor
getFile()—Returns the full path to the code file where the exception was raised
getLine()—Returns the line number in the code file where the exception was
raised
getTrace()—Returns an array containing a backtrace where the exception was
raised
getTraceAsString()—Returns the same information as getTrace, formatted as a
string
__toString()—Allows you to simply echo an Exception object, giving all the
information from the above methods