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There is a problem with the final call of php to implement image verification code?

According to php how to implement image verification code content guide encapsulation verification code class

羅梅光 2022-05-05 01:22:00 0  8  1257

java - Image verification code implementation principle

**Test website: http://con.monyun.cn:9960/acc... There is a verification code on this page. The url of this verification code is <img src="../aut_checkCode.hts?=0.8963835985936632" class="icd"> How to change the displayed image when clicking on the verification code...

怪我咯 2017-05-27 17:41:18 0  4  1154

thinkphp3.2 verification code automatic verification

How to use automatic verification of the verification code of thinkphp3.2? ? I can't write like this

習慣沉默 2017-05-31 10:33:48 0  1  1022

Verification code

No matter what the verification code is entered, the "Verification Code Error" dialog box will pop up. Even if you don't fill it in, it will not prompt it to be empty and "Verification Code Error" will still be displayed.

蘋果橙 2021-12-13 21:34:09 0  1  1203

php adds human-machine verification code

Guys, how can I add a human-machine verification code to the PHP source code (Mituo website building)? Please answer it, thank you! (There are a total of three platform verification codes, I hope you can tell me about them all, thank you) 1. Luosimao https://luosimao.com/docs/api/56 2. Tencent https...

Microsoft-Windows 2020-10-22 16:47:44 0  1  1471

Verification code

What does the verification code need to do?

諾坎普的小跳蚤 2018-07-26 16:38:06 0  1  1520

Display of verification code

Why is the verification code not displayed and an error message appears when entering the verification code?

小王子。 2018-06-28 09:38:46 0  1  1259

Verification code

Don’t you think the verification code is a bit big?

鐵力瓦爾良 2021-05-18 19:00:45 0  1  1202

When verifying the verification code

Why does the verification code section always prompt that the verification code cannot be empty?

**軍 2019-02-14 23:01:41 0  3  1410

Verification code

Why does this appear when I put my mouse over the verification code?

大司命 2018-08-14 09:34:45 0  0  1068

Verification code problem

After submitting, it always prompts a verification code error.

Laolz 2018-04-23 14:48:00 0  1  1200

javascript - Through the session, the verification code generated by php can be refreshed by clicking on it. Why?

Generate verification code through php, and then output it with img tag. Excuse me, why if there is session_start() and the onclick event is written like this, clicking will have the effect of refreshing the verification code? (A new verification code will appear) There is no session, and the click ...

PHP中文網 2017-05-16 12:59:41 0  3  519

Verification code cannot be displayed

When logging in, a verification code starts to appear. When you click "Change", the verification code does not appear. Ask an expert for help.

☆ 宇軒 ☆ 2018-04-28 18:28:59 0  1  1430

Can't get verification code

The "name" attribute is defined in the verification code input box in the form. There is no verification code in the post variable obtained after the form is submitted. What is the reason?

Nick 2018-05-27 11:17:35 0  1  1026

Verification code input is inconsistent

The verification code is obviously the same as the picture, but it keeps prompting that the verification code is inconsistent and cannot be completed by refreshing like the teacher.

CiCi 2017-06-22 22:07:41 0  1  1249

tp5 verification code problem.

This verification code is quite magical. It can be displayed and used normally after following the tutorial. If you change the directory and put the downloaded source code without modification, it will not be displayed. After placing it in the secondary directory, the verification code can be displa...

aTom 2017-12-18 12:22:13 0  1  1082

Verification code is not displayed

Why doesn't my verification code show up?

phpcn_u2216 2017-06-12 21:44:56 0  1  1322

About verification code

Where should I put this verification code? ? ? ? How to add it, please give me some advice! ! !

但行好事 莫問前程 2021-09-29 20:21:33 0  1  970

Verification code and permission issues

Why can I log in to the backend without entering the verification code, but when I type the verification code, it shows that the verification code is wrong regardless of whether it is correct or wrong. Even though I have written permissions, I can still directly type in the URL to enter the backend....

Kagamigawa Chloe 2018-03-31 19:05:38 0  1  1502

tp5 uses ajax to realize verification code refresh and click no response

The following is part of the html verification code<div class="row cl"> ????????? <div class="formControls col-xs-8 col-xs-offset-3"> &n

楊云雷 2018-08-13 14:52:03 0  4  1563