PHP's strip_tags() deletes the links in your HTML email

<p><em>If your PHP code turns HTML email into plain text with <code>strip_tags()</code>, every link in that mail loses its address. "Reset password" survives; the URL behind it is gone. Below: why the two obvious regex fixes still lose links, one way a regex can blank the whole message, and a short DOM function that kept 8 of 8 links in my tests where <code>strip_tags()</code> kept 1.</em></p> <p>

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