Detailed description of the default mode

Using exception mode-pdo::errmode_exception (the error method in capturing SQL statements in PDO three) The exception mode creates a pdoexception and sets the Erorcode property, which encapsulates the execution code into a try{...} Catch{...} Statement, an uncaught exception will cause the script to break and display a stack trace to let the user know where the problem is! In the first two articles, "using the default mode-pdo::errmode_silent (Error method in capturing SQL statements in PDO)", "Using warning mode-pdo::errmode_warning (capturing the error method in the SQL statement in PDO II)" We have introduced the default mode and exception mode two methods, then we introduce the third method to capture the error of SQL statement in PDO ~ exception mode Another very useful is, compared to the traditional PHP style warning, you can more clearly build their own error handling, The exception pattern requires less code/nesting than silent mode and explicitly checking the return value of each database call. Except

1. Recommended articles about abnormal mode

Summary: Using the exception mode-pdo::errmode_exception (the error method in capturing an SQL statement in PDO three) The exception mode creates a pdoexception and sets the Erorcode property, which encapsulates the execution code into a try{...} Catch{...} Statement, an uncaught exception will cause the script to break and display a stack trace to let the user know where the problem is! In the first two articles, using the default mode-pdo::errmode_silent (PDO in the capture s ...

2. About Pdo::errmode_exception's article recommendation

Summary: Using the exception mode-pdo::errmode_exception (the error method in capturing an SQL statement in PDO three) The exception mode creates a pdoexception and sets the Erorcode property, which encapsulates the execution code into a try{...} Catch{...} Statement, an uncaught exception will cause the script to break and display a stack trace to let the user know where the problem is! In the first two articles, using the default mode-pdo::errmode_silent (PDO in the capture s ...

3. How is ErrorCode () used? ErrorCode () Example Usage Summary

Introduction: The method of error handling in PDO a-errorcode () method has two methods for getting error messages in the program in PDO: ErrorCode () method and ErrorInfo () Method! Then the next article, we will introduce you to each of these two methods! Before we introduce you to the three ways to capture the error of the SQL statement in PDO, if you are still unfamiliar or do not understand, you can review the use default mode-pdo::errmode_silent (the error method in the capture SQL statement in PDO ...).

4. Use the default mode-pdo::errmode_silent (the error method in the capture SQL statement in PDO one)

Summary: Capturing SQL statement errors in PDO there are three options to choose from, according to your own development projects and the actual situation to choose the appropriate scenario to capture the SQL statement error!

5. Capturing errors in the SQL statement in PDO

Summary: Capturing errors in SQL statements:P do: Using the default mode-----pdo::errmode_silent Sets the ErrorCode property of the Pdostatement object in the default mode, but does nothing else. For example: Add data to the database through the prepare () and execute () methods, set the Errocode property of the Pdostatement object, manually detect errors in the code, and proceed as follows. Databases used by the =mysql;//database type $dbname=admin;//$dbms

6. Oracle Data pump: IMPDP and EXPDP

Summary: In parallel mode, the status screen displays four worker processes. (In the default mode, only one process is visible) all the worker processes synchronize the data out and the status screen

7. PostgreSQL default mode order and change

Introduction: The Concept of PostgreSQL schema (schema) is in fact the scope of the database, that is, in different modes, you can have the same name of the table. Can be easily understood as the file system

8. PHP Security Incompatible _php

Introduction: Shaun Clowes article exploiting Common vulnerabilities in PHP applications did write great, considering a lot of aspects, I this article is only incompatible, add some other not how to mention the problem. This article focuses on solving the problem rather than attacking it. 1, the ancient cheat SQL statement in the default mode, even if you forget to put php.ini

9. Incompatible to attack PHP vulnerability _php

Introduction: Shaun Clowes article exploiting Common vulnerabilities in PHP applications did write great, considering a lot of aspects, I this article is only incompatible, add some other not how to mention the problem. This article focuses on solving the problem rather than attacking it. 1, the ancient cheat SQL statement in the default mode, even if you forget to put php.ini cuff

10. Simple talk about JavaScript code reuse mode _javascript Tips

Introduction: This article is mainly a brief talk about the JavaScript code reuse mode, the main details of the class-based inheritance mode of the default mode, I hope you can like.

"Related question and answer recommendation":

Replica-set-mongodb Replset In this case will not sync?