q**1
发帖数: 193 | 1 Just like many downloading/uploading websites such as
uploading.com.. Users have to enter the number shown on
a picture to be eligible to access the next page.
Generating a random number looks ok, but how to make a
fixed-size picture on the fly? Any API with PHP or other
tools??
http://www.uploading.com/en/showimgs.php?key=75609860
BTW, I found the above link to a picture, looks they
just extract a picture from the DB? so for a 5-digit system,
that means 99999 potential pictures saved in the HD? | e******x
发帖数: 925 | 2 http://pear.php.net/packages.php?catpid=36&catname=Text
【在 q**1 的大作中提到】
: Just like many downloading/uploading websites such as
: uploading.com.. Users have to enter the number shown on
: a picture to be eligible to access the next page.
: Generating a random number looks ok, but how to make a
: fixed-size picture on the fly? Any API with PHP or other
: tools??
: http://www.uploading.com/en/showimgs.php?key=75609860
: BTW, I found the above link to a picture, looks they
: just extract a picture from the DB? so for a 5-digit system,
: that means 99999 potential pictures saved in the HD?
| c***c
发帖数: 21374 | 3 用这个
http://captchas.net/
【在 q**1 的大作中提到】
: Just like many downloading/uploading websites such as
: uploading.com.. Users have to enter the number shown on
: a picture to be eligible to access the next page.
: Generating a random number looks ok, but how to make a
: fixed-size picture on the fly? Any API with PHP or other
: tools??
: http://www.uploading.com/en/showimgs.php?key=75609860
: BTW, I found the above link to a picture, looks they
: just extract a picture from the DB? so for a 5-digit system,
: that means 99999 potential pictures saved in the HD?
| q**1
发帖数: 193 | 4 many thanks, exactly what I am looking for.. :-)
【在 c***c 的大作中提到】
: 用这个
: http://captchas.net/
| q**1
发帖数: 193 | 5 I didn't get what you meant till I saw BM's post, many thanks.
【在 e******x 的大作中提到】
: http://pear.php.net/packages.php?catpid=36&catname=Text
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