Simple PHP XSS / Urlencode Question -


i have email address param email addresses passed un-encoded so:

http://domain/script?email=test+test@gmail.com

what php escaping/encoding let me safely display email address on input field on page?

everything tried causes encoded chars show instead of user-friendly email address (i.e. test%2btest%40test.com)

update - here's i've tried:

going ?email=test+test@gmail.com to:

urlencode($_get['email']) = test+test%40test.com (@ sign encoded) htmlspecialchars($_get['email']) = test test@test.com (lost +) htmlspecialchars(urlencode($_get['email']) = test+test%40test.com (@ sign encoded)

recall i'm trying take unencoded url email param , safely output value of input field while keeping plus signs intact.

maybe should try this?

str_replace("%40", "@", htmlspecialchars(urlencode($_get['email'])))

if want safely output in value of input field, need htmlencode first htmlspecialchars.

example :

<input type="email" name="email" value="<?php echo htmlspecialchars($_get['email']); ?>"

note : if aren't using double quote around output, need apply more escaping. this page explains all.


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