PHP graphic verification code generation and Ajax verification instance application (1/2) _ PHP Tutorial

PHP graphic verification code generation and Ajax verification examples (12 ). The PHP graphic verification code generation code and the verification code programs written before the application include Ajax verification instances provide source code, but the actual graphic verification code is not generated to the verification instance, this time, the PHP graphic verification code generation code and the verification code program that was previously written by the Ajax verification instance application provide the source code, but the actual graphic verification code is not generated to the verification instance, this time we generated a complete php verification instance.

Php graphic verification code generation and ajax verification examples
Previously, the verification code program provided source code, but did not generate a real graphic verification code to the verification instance. this time, we generated a complete php verification instance.

There are 3 files:
Authcode. php ----- php file generated for the verification code
Authcode.html ----- front-end display page
Dealauthcode. php ----- processing page submitted by ajax to the background to determine whether the verification code is correct
*/
?>

The front-end calls the verification code

Verification code ajax verification