Dennis Spohr

Send out email on exceptions

Recommended Posts

Hi all,



it's possible to send out an email for fatal errors (for example a syntax-error).

It would be nice to get also an email in case of an unhandled exception. There could be a situation of an wrong upload and exceptions on the live-page.

Is this possible?

Also it could be a very handy feature to be able to choose specific logs which are sent our via email automatically.

Thanks for your feedback,

Share this post

Link to post
Share on other sites

Pretty sure you can add a hook somewhere, catch the errors you want and send out an email.

This would make great module though. Perhaps with the option to get a weekly digest of the log action. That'd be nice.

Share this post

Link to post
Share on other sites
38 minutes ago, heldercervantes said:

Pretty sure you can add a hook somewhere, catch the errors you want and send out an email.

This would make great module though. Perhaps with the option to get a weekly digest of the log action. That'd be nice.

How can I find such a hook? I don't have much experience with them yet.
Very nice idea regarding weekly emails! 


36 minutes ago, adrian said:

TracyDebugger's "production" mode has the option to email for various error types.

Wow nice module, didn't see this one before. I will check it out for sure. Thank you!

  • Like 1

Share this post

Link to post
Share on other sites

Hi @Dennis Spohr,

most things can be done with hooks. Hooks are class methods that have 3 preceding underscores, so you may find them in the php and module files in the wire folder. (Using a "search-in-files" function of your Editor / IDE: "function ___"). Or go to Captain-Hook.

Unfortunately or Fortunately, the part with sending emails on exceptions / errors seems to be completly different. It uses the native PHP register_shutdown_function, done in WireShutdown.php and therefore is not hookable through the PW system.

But the PHP docs say that it is possible to register more than one shutdown-function, and that all functions get called on shutdown. So you can register your own one. If you want to have the ability to optionally bypass processwires shutdown function, you must register yours before PWs one. (I don't know how, but would try it in site/config.php first). Than, in cases where you don't want PWs function get called, you can exit yours with exit();. Otherwise other registered functions get called and executed too.

Have a read in the WireShutdown::shutdown() function. There you see how to check if there were an error, how to get it and how to inspect it, etc.


Also there is the site/finished.php file, that gets executed at the end. But this one I haven't used til now and don't know if it get called on exceptions too.


If you test and further questions apear, come back and ask. :)

  • Like 4

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By ihathome
      I'm an abolute newbie in processwire an it's modules. But I have read huge amounts of posts in this forum and as many docs and i learnt a lot in the last days. For a contact-form i used this great module (many thanks) and i hooked it my first time. Everything is alright. Now i search for a possibility to format or render the output in the email. Is there any posibility?
      Thank you for your replies
    • By Kiwi Chris
      Forms are an essential part of most websites, and it's no surprise that there's an excellent premium module Form Builder but what if you're on a zero budget for whatever reason?
      It is possible to build forms quickly and easily by making use of a couple of free modules and the admin UI to give you a great deal of flexibility and speed of development, particularly if you need multiple forms on a website with different fields.
      1. First you're going to need to install a couple of modules:
      Form Template Processor
      Fieldtype Select External Option
      2. For each form that you want to display, create a template without a template file and add fields to it as you normally would. (eg I have formContact, formRegister etc)
      Tip: under the Advanced tab in the setup for each template, I add a tag Forms so that all my forms templates are nicely grouped together in admin.
      3. Create a new field of type Select External Option and call it formTemplate
      In the section Create options from any database table select
      templates as the source table id as the Option Value name as the Option Label 4. Create a new template file and call it renderForm.php (or whatever else you like)
      Add an email field to this form - This will be the email address that forms get submitted to. Add the formTemplate field you previously created to this form. This will allow you to select which of the templates you previously created such as formContact, formRegister etc you want to render. Add any other fields as usual that you want to render on the page. Add the following PHP code to the template file. $recipient = $page->email; $form = $modules->get('FormTemplateProcessor'); $form->template = $templates->get($page->formTemplate->label); // required $form->requiredFields = array('contactName', 'contactEmail', 'contactMesssage'); //Optional: This can be improved by having a field in the page template with a CSV list of required fields eg $form->requiredFields = explode(',', $page->requiredFields) $form->email = $recipient; // optional, sends form as email. FormTemplateProcessor can also save forms to the database. $content .= $form->render(); //generate the form to display. Note: this doesn't actually render the form at this point, but you have it in the $content variable ready to output wherever you want in your template.
      Add any template HTML or other PHP code and echo $content; wherever you want to render the form.
      5. Create a page using the renderForm template, and provide an email address, and select a form that you want to display.
      6. Use CSS to style the form as required.
      7. View your new page, and check that the form renders correctly.
      8. You can modify the templates you created at step 2 or create new ones as required if your requirements for what fields forms display changes.
      Note: The Form Template Processor module can also save form input as pages, and the FieldType Select External Option can be set up with filtering, so this solution can probably be refined further.
    • By henri
      Hi Guys,
      i am a newbe to processwire. Have to maintain a website, but never worked with processwire. I have got an form that is submitted ( i do not have the form thing), to two email addresses. The last week the mails to the second address aren't delivered so it seems. Where do i find the email addresses where the form is submitted to?? I cant find them, though i can find the include of the form. Who knows?????
    • By noelboss
      This module hooks into the login method to provide the possibility to login with the user's email address. This is my first module and it's very simple. Please provide feedback if you have any suggestions. Thanks
      The module can be found in the module repository:
      or on github:
    • By cosmicsafari
      Hi All,
      Just a quick question, if a form has an upload field should there be a working link in the subsequent email which allows you to view the uploaded file?
      As it stands only the name and size of the file appears in the email although viewing the source it appears wrapped in anchor tags, albeit without any href attribute.
      I'm not sure if this is the correct result or if I have somehow managed to cause this and there should be a working link to the uploaded file.