Rowupdating error handling
This tutorial contains some of the most common error checking methods in PHP.
We will show different error handling methods: The code above is more efficient than the earlier code, because it uses a simple error handling mechanism to stop the script after the error.
When these errors occur, they are considered “terminating errors.”As an example, if you want to stop the execution of your Windows Power Shell script when an error occurs during a call to Stop-Process, you can simply add the -Error Action parameter and use the value Stop: Stop-Process -Name invalidprocess -Error Action Stop; If you want to suppress the errors from being displayed, you can use the value Silently Continue, for example: Stop-Process -Name invalidprocess -Error Action Silently Continue; You can also combine the Error Action and Error Variable parameters, such as in this example: Stop-Process –Name invalidprocess -Error Action Silently Continue -Error Variable Process Error; If ($Process Error) We have explored the use of two Windows Power Shell common parameters, Error Action and Error Variable.
I hope that this post has enlightened you about the use of these variables and how to use them to direct the execution flow of your scripts.
Let’s take a look at an example: Stop-Process -Name invalidprocess -Error Variable Process Error; $Process Error; Stop-Process -Name invalidprocess2 -Error Variable Process Error; if ($Process Error) The -Error Action common parameter allows you to specify which action to take if a command fails.
The available options are: Stop, Continue, Silently Continue, Ignore, or Inquire.
Thank you for reading, and I will see you next time!
We are going to make the function above the default error handler for the duration of the script.If you’re coming to Windows Power Shell from a software development background, you’ll most likely pick up on Try-Catch-Finally pretty easily.On the other hand, if you’re new to scripting, or you are a curious, knowledge-driven individual, you might want to consider what we’re talking about today.However, simply stopping the script is not always the right way to go.
Let's take a look at alternative PHP functions for handling errors. We simply create a special function that can be called when an error occurs in PHP.
It then outputs the error level and message and terminates the script.