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PHP “trigger_error” causing fatal exception

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In the class DrupalCoreRenderElement this line appears, which handles the case of an invalid key in a render array:

trigger_error((string)(new FormattableMarkup('"@key" is an invalid render array key', ['@key' => $key])), E_USER_ERROR);

On my local dev environment when the condition occurs I get a white screen of death, and a PHP stacktrace in the log. The trigger_error line is the last in the trace. On other servers built by my client's IP guy the error appears in the Drupal watchdog and on the page's messages.

If I temporarily change E_USER_ERROR to E_USER_NOTICE the error is no longer fatal.

So clearly there is some setting somewhere that affects the handling of this error and makes it fatal or not, but I have not been able to find what it is, despite much googling. The Drupal error reporting settings don't affect it.

php drupal-8 php-7.1

share|improve this question

asked Mar 27 at 14:39

Alfred ArmstrongAlfred Armstrong

20833 silver badges88 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  php.net/manual/en/errorfunc.constants.php This is like an E_ERROR : Fatal run-time errors. These indicate errors that can not be recovered from, such as a memory allocation problem. Execution of the script is halted
  
  – Romain B.
  Mar 27 at 14:42
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks but that doesn't explain what is happening. In some environments it isn't causing execution to halt.
  
  – Alfred Armstrong
  Mar 27 at 15:25
  

  
  
  
  

add a comment | 

0

In the class DrupalCoreRenderElement this line appears, which handles the case of an invalid key in a render array:

trigger_error((string)(new FormattableMarkup('"@key" is an invalid render array key', ['@key' => $key])), E_USER_ERROR);

On my local dev environment when the condition occurs I get a white screen of death, and a PHP stacktrace in the log. The trigger_error line is the last in the trace. On other servers built by my client's IP guy the error appears in the Drupal watchdog and on the page's messages.

If I temporarily change E_USER_ERROR to E_USER_NOTICE the error is no longer fatal.

So clearly there is some setting somewhere that affects the handling of this error and makes it fatal or not, but I have not been able to find what it is, despite much googling. The Drupal error reporting settings don't affect it.

php drupal-8 php-7.1

share|improve this question

asked Mar 27 at 14:39

Alfred ArmstrongAlfred Armstrong

20833 silver badges88 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  php.net/manual/en/errorfunc.constants.php This is like an E_ERROR : Fatal run-time errors. These indicate errors that can not be recovered from, such as a memory allocation problem. Execution of the script is halted
  
  – Romain B.
  Mar 27 at 14:42
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks but that doesn't explain what is happening. In some environments it isn't causing execution to halt.
  
  – Alfred Armstrong
  Mar 27 at 15:25
  

  
  
  
  

add a comment | 

In the class DrupalCoreRenderElement this line appears, which handles the case of an invalid key in a render array:

trigger_error((string)(new FormattableMarkup('"@key" is an invalid render array key', ['@key' => $key])), E_USER_ERROR);

On my local dev environment when the condition occurs I get a white screen of death, and a PHP stacktrace in the log. The trigger_error line is the last in the trace. On other servers built by my client's IP guy the error appears in the Drupal watchdog and on the page's messages.

If I temporarily change E_USER_ERROR to E_USER_NOTICE the error is no longer fatal.

So clearly there is some setting somewhere that affects the handling of this error and makes it fatal or not, but I have not been able to find what it is, despite much googling. The Drupal error reporting settings don't affect it.

php drupal-8 php-7.1

share|improve this question

asked Mar 27 at 14:39

Alfred ArmstrongAlfred Armstrong

20833 silver badges88 bronze badges

trigger_error((string)(new FormattableMarkup('"@key" is an invalid render array key', ['@key' => $key])), E_USER_ERROR);

share|improve this question

asked Mar 27 at 14:39

Alfred ArmstrongAlfred Armstrong

20833 silver badges88 bronze badges

share|improve this question

asked Mar 27 at 14:39

Alfred ArmstrongAlfred Armstrong

20833 silver badges88 bronze badges

asked Mar 27 at 14:39

Alfred ArmstrongAlfred Armstrong

20833 silver badges88 bronze badges

asked Mar 27 at 14:39

Alfred ArmstrongAlfred Armstrong

20833 silver badges88 bronze badges