Thanks for the Captcha code. I integrated it into our WikiLens user
account process (NewUserRegister plugin), although that is not yet live.
One change I made that might be interesting to you is that I generate
random strings instead of taking words from a dictionary. I can see why
you wouldn't want it, but here's the patch to Captcha if you do.
Dan
% cvs diff -r 1.1 -bu Captcha.php
Index: Captcha.php
===================================================================
RCS file: .../phpwiki/lib/Captcha.php,v
retrieving revision 1.1
retrieving revision 1.2
diff -b -u -r1.1 -r1.2
--- Captcha.php 28 Oct 2005 18:11:28 -0000 1.1
+++ Captcha.php 28 Oct 2005 18:11:51 -0000 1.2
@@ -35,6 +35,18 @@
}
}
+function get_captcha_random_word () {
+ // Pick a few random letters or numbers
+ $word = "";
+ // Don't use 1 <=> l or 0 (for o), because they're hard to read
+ $letters = "abcdefghijkmnopqrstuvwxyz23456789";
+ $letter_len = strlen($letters);
+ for ($i=0; $i<4; $i++) {
+ $word .= $letters[mt_rand(0, $letter_len-1)];
+ }
+ return $word;
+}
+
// Draw the Spiral
function spiral( &$im, $origin_x = 100, $origin_y = 100, $r = 0, $g =
0, $b = 0 ) {
$theta = 1;
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