Recommended 10 commonly used backend verification methods, welcome to view

This article mainly introduces 3 possible reasons and solutions for why the DEDECMS background verification code error cannot be verified normally. Friends in need can refer to the dedecms template download address: www.php.cn/xiazai/code/dedecms I often see many people posting that they cannot enter the backend after using the site built by Dreamweaver for a period of time. The verification code is obviously correct but the prompt says that the verification code is incorrect. Today I spent some time sorting out some related methods, mainly as follows: Solution 1: The data/session was not saved successfully because the directory did not have write permission (permission 777). You can use the FTP connection tool or enter the online file management. Modification; Solution 2: You can cancel the verification code. The specific operation method is as follows, which is divided into two steps: 1. Open dede/login.php and find: The code is as follows: if($validate=='' || $validate != $svali) is replaced with: The code is as follows: if

1. 3 possible reasons why the DEDECMS background verification code error cannot be verified normally due to 3 possible reasons

Introduction: This article mainly introduces 3 possible reasons and solutions for DEDECMS background verification code errors that cannot be verified normally. Need Friends can refer to

2. ThinkPHP5 development (2) Detailed explanation of graphic code to implement registration function with background verification

#Introduction: The thinkphp5 manual provides many verification methods. You can verify in the controller, you can use the helper function, and you can verify in the model. , but verification in the model requires the User class to inherit the verification class, but PHP does not support multiple inheritance. You need to choose which method is best for you.

3. Comma-separated value file php processing method with comma thousands digits

Introduction: comma-separated Value file: comma-separated value file php. How to process numbers with commas: usually use number_format(); to format numbers. By default, thousands of characters are separated by commas, for example: Copy the code as follows: echo number_format( "10000.01231", 2); //Take 2 digits after the decimal point, and the output result is: 10,000.01. Thousands are separated by commas by default. It would be a bit laborious if we verify the numbers in this format obtained from the client in the background. Veteran repairmen usually use filter_input(INPUT_POST,"price

##4. dedecms collection tutorial dedecms background verification code always prompts an error solution

Introduction: dedecms collection tutorial: dedecms collection tutorial dedecms background verification code always prompts an error solution: directly use the following code to overwrite login.php in dede and copy the code as follows:

5. Dedecms background verification code always prompts an error solution_PHP tutorial

Introduction: dedecms background verification The solution to the error code always prompts. Directly use the following code to overwrite login.php in dede and copy the code as follows: ? require_once(dirname(__FILE__)."/../include/config_base.php"); require_once (dirname(__FILE__)."

6. Website background verification is legal

Introduction: Website background verification is legal

7. GD library is not supported, what should I do?

##Introduction: GD library is not supported, what should I do if I install it locally? I installed php5.2.5 and installed and opened the GD library, but when I tested the script, it still showed: No. The background verification code cannot be displayed. . ---------------Check whether the location of php.ini is correct ------Solution--------------------What system. The window is found in php.ini; ext

##8.

Issues related to the verification code

Introduction: For the verification code problem, I made a verification code class, but the verification is not very user-friendly. It seems that using SESSION to save random numbers can only be verified from the background PHP, and the value of $_SESSION is compared with the input value. , can it be put into the front-end for verification, using JS like the user name, and after the user enters the verification code, he will know whether it is wrong or correct. . Thank you~------Solution--------------------The front-end ajax submits the background verification. . . ------Solution

9. Website background verification is legal

Introduction: Website background verification It's legal. My current website only uses session for verification. Is there any better solution? I always feel unsafe with just this level of verification.                                                                                                                                                     Share to:

10. Determine the correctness of sql statements in php

Introduction: Determine the correctness of sql statements in php The correctness of the SQL statement is verified in the background, but the statement cannot be executed. What function should be used to output error information if there is an error?                                                                                                                                                     Share to:

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