The difference and application of error and exception in PHP

This article mainly introduces the difference between the error and exception in PHP and the application, the need of friends can refer to the

The difference between error and exception access to the online data is mostly Java explanation, seemingly PHP exception handling process and Java almost

The object inheritance structure in Java is as follows:

Object---->throwable--------> Exception----> RuntimeException | Error

Error is unchecked type exception divided into checked and unchecked types

And to treat the anomalies and errors as the process of abnormal operation of the phenomenon to see

If you distinguish between exceptions and errors:

Exception: Not fatal. Try{}catche (Exception e) {} The Try module in execution is a test run that has an error (non-fatal error) executing during the run of the Code Catche

The exception works like the following code:

if (mysql_connect (' 127.0.0.1 ', ' root ', ' 321321 '))

{

echo ' Connect to database success ';

Other code ...

}

Else

{

Echo ' Connection database error ';

return false;

}

Exceptions can be handled easily by using exception handling. As the following code can handle a lot of exceptions at once

Try

{

mysql_connect (' 127.0.0.1 ', ' root ', ' 321321 ');

Other code for you want to execute

}catche (Exception $e) {

Print_r ($e);

}