What should I do if it prompts that signature verification failed when installing PHP Manager?

With the development of the Internet and the rapid development of Web development technology, PHP, as a mainstream programming language, is widely used in various Web applications. However, during the installation of PHP Manager, some users will encounter signature verification failures. Below, this article will explain how to solve this problem.

First, let us understand what PHP Manager is. PHP Manager is a tool for managing extensions and configuration files. It can manage the configuration and version of PHP in IIS. Through PHP Manager, IIS administrators can perform common PHP management tasks, such as enabling and disabling extensions, editing the php.ini file, switching PHP versions, and more. When we install PHP Manager, we are prompted that signature verification failed, usually due to the following reasons:

1. The installation program has been tampered

The signature is a verification program or package A way to ensure the integrity and trustworthiness of an installer if it has been tampered with or corrupted. Once the signature of the program is tampered with or damaged, an error message indicating that the signature verification failed will appear. This is usually due to malware infections, virus attacks, etc.

2. Signing certificate expired

Installers typically use digital signature certificates to verify the integrity and trustworthiness of the program. The signing certificate has a validity period. Once the validity period is exceeded, the signature will become invalid, causing signature verification to fail.

So, how should we solve this problem? Below, this article will introduce two common solutions:

Solution 1: Update the digital signature certificate

We can solve the problem of signature verification failure by updating the digital signature certificate. The specific steps are as follows:

1. Open IE browser, enter "http://timestamp.verisign.com/scripts/timstamp.dll" in the address bar, and then press the Enter key.
2. In the pop-up security warning box, click "Yes" to continue opening the website.
3. Wait for the website to load and click the "Download Rootnow" button. After downloading, right-click the file, select "Install Certificate", and follow the wizard prompts to complete the certificate installation.
4. Rerun the PHP Manager installation program. If the signature verification failure problem is solved, congratulations, you can happily use PHP Manager.

Solution 2: Disable signature verification

If for some reason, we cannot update the digital signature certificate, or updating the certificate still cannot solve the problem of signature verification failure, then we can Solve this problem by disabling signature verification. The specific steps are as follows:

1. When running the PHP Manager installer, when prompted that the signature verification failed, click the "More Information" button.
2. In the pop-up window, select the "Run unprotected program" option and click the "Yes" button to continue the installation.
3. After waiting for the installation program to complete, check whether PHP Manager is installed correctly. If everything goes fine, congratulations, you can start using PHP Manager happily!

To sum up, the problem of PHP Manager signature verification failure may come from various reasons such as the installation program being tampered with and the signing certificate expiring. We can solve this problem by updating the digital signature certificate or disabling signature verification. I hope this article helps you solve this problem, thank you for reading!

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