Php Verification Code refresh and partial refresh

Welcome to the Linux community forum and interact with 2 million technical staff to refresh the php Verification Code call and partial refresh. These two cases are used in website development. I. Verification Code refresh example: forcanchodpostnameloginaction verification code: inputtypetextnamecodeclass

Welcome to the Linux community forum, interact with 2 million technical staff> enter the refresh and partial refresh when calling the php Verification Code. These two cases are used in website development. I. Verification code refresh example: form method = "post" name = "login" action = "" Verification code: input type = "text" name = "code" class =

Welcome to the Linux community forum and interact with 2 million technicians>

The php verification code is refreshed and refreshed locally. These two cases are used in website development.

I. Refresh the verification code

Sample Code:

　　

Method 1. use JavaScript pseudo classes

Sample Code:

　　

Method 2: Import external files

InIntroduce external files

Sample Code: