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Ajax-how does the Android client obtain the php client Verification Code image?

Source: Internet
Author: User
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I wrote a file using php to generate a verification code and an image (this file name is captcha. php) and put it on the server side. How does the Android client obtain an image of a Verification Code by accessing this file (such as localhostwebcaptcha. php through a url? Php generated the verification code and... I used php to write a file that generated the verification code and image (the file name is captcha. php) and put it on the server side.
How does the Android client obtain a file by accessing this file (such as localhost/web/captcha. php )?
Verification Code image?
The code for generating a verification code and an image using php is as follows:

Reply content:

I wrote a file using php to generate a verification code and an image (this file name is captcha. php) and put it on the server side.
How does the Android client obtain a file by accessing this file (such as localhost/web/captcha. php )?
Verification Code image?
The code for generating a verification code and an image using php is as follows:

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