How can I tell PHP to dump exceptions as raw text instead of HTML?

Question

When I\'m developing my REST API in PHP I\'m working with application/json output, so when I get errors while testing in the browser they look like this:

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Answer 1

There may be some configuration option that I can't find to do this - I suspect there is, since the HTML is not present on the command line.

A dirty work around is to pass the strings through html_entity_decode(strip_tags($str)).

EDIT As Andy Pieters has pointed out (he is obviously better at reading docs than I am) there is a configuration option called html_errors to control this. I will leave this answer here in case for some reason you cannot modify this, but you should probably accept his answer.