How to use exception mode?

Use exception mode -PDO::ERRMODE_EXCEPTION (Method 3 for capturing errors in SQL statements in PDO) exception mode will create a PDOException and set the erorCode attribute, which can encapsulate the execution code into a try{...}catch In the {...} statement, uncaught exceptions will cause the script to interrupt and display a stack trace to let the user understand where the problem occurred! In the first two articles "Using the default mode-PDO::ERRMODE_SILENT (Method 1 to capture errors in SQL statements in PDO)" and "Using warning mode-PDO::ERRMODE_WARNING (Method 2 to capture errors in SQL statements in PDO)" We have introduced two methods: default mode and exception mode, so today we will introduce the third method to capture errors in SQL statements in PDO ~ Another very useful thing about exception mode is that it can be clearer than traditional PHP style warnings You can easily build your own error handling, and exception mode requires less code/nesting than silent mode and explicitly checking the return value of each database call. Except

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##Introduction: Use exception mode -PDO::ERRMODE_EXCEPTION (Method 3 to capture errors in SQL statements in PDO) exception mode will create a PDOException and set the erorCode attribute, which can encapsulate the execution code into a try{...} In the catch{...} statement, uncaught exceptions will cause the script to interrupt, and a stack trace will be displayed to let the user understand where the problem occurred! In the first two articles "Using the default mode-PDO::ERRMODE_SILENT(Capturing S...

2. Detailed introduction to the default mode

Introduction: Using exception mode-PDO::ERRMODE_EXCEPTION (Capturing errors in SQL statements in PDO three) Exception mode will Create a PDOException and set the erorCode attribute, which can encapsulate the execution code into a try{...}catch{...} statement. Uncaught exceptions will cause the script to interrupt and display the stack trace to let the user understand what is happening. Where is the problem! In the first two articles "Using the default mode-PDO::ERRMODE_SILENT (Capturing S...

3. About PDO::ERRMODE_SILENT 10 articles recommended

Introduction: Using exception mode-PDO::ERRMODE_EXCEPTION(Capturing SQL statements in PDO Error method 3) Exception mode will create a PDOException and set the erorCode attribute, which can encapsulate the execution code into a try{...}catch{...} statement. Uncaught exceptions will cause the script to interrupt. , and display stack traces to let users understand where the problem occurs! In the first two articles "Using the default mode-PDO::ERRMODE_SILENT(PDO to capture S...

Recommended articles about exception mode

#Introduction: Using exception mode-PDO::ERRMODE_EXCEPTION( Method 3 of catching errors in SQL statements in PDO) Exception mode will create a PDOException and set the errorCode attribute, which can encapsulate the execution code into a try{...}catch{...} statement, uncaught exceptions Will cause the script to interrupt and display a stack trace to let the user understand where the problem occurred! In the first two articles "Using the default mode-PDO::ERRMODE_SILENT(PDO to capture S...

5.

Introduction: Exception mode will create a PDOException and set the erorCode attribute. It can encapsulate the execution code into a try{...}catch{...} statement. Uncaught exceptions will Will cause the script to break and display a stack trace to let the user understand where the problem occurred!

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Introduction: Function function is the most basic program structure provided by Python to maximize code reuse and minimize code redundancy. Functional: Encapsulate a certain functional code into a function, so that you don’t need to write it again in the future. You can just call the function. Object-oriented: Classify and encapsulate functions to make development "faster and more...

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