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hphp_set_error_page

Note

This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information.

Displays fatal errors with this PHP document

function hphp_set_error_page(
  string $page,
): void;

When 500 fatal error is about to display, it will invoke this PHP page with all global states right at when the error happens. This is useful for gracefully displaying something helpful information to end users when a fatal error has happened. Otherwise, a blank page will be displayed by default.

Parameters​

  • string $page - Relative path of the PHP document.

Returns​

  • void