PHP is a vital coding language for WordPress users. Even if you’re not a developer, you may still need to lớn understand a little about it in order to maintain your site. However, if you don’t know where to look, finding even the most basic PHP information for your WordPress installation can be tricky.
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Fortunately, if you care khổng lồ take a few minutes to lớn set it up, you can create a single page where you’ll find all the PHP information you need. Even better, it only takes a single line of code to vày so.
In this post, we’ll introduce you lớn the phpinfo() function và explain why it may be useful lớn you. Then we’ll show you how khổng lồ use it to lớn create a phpinfo page for your WordPress site.
Let’s get started!
An Introduction to the phpinfo() Function
phpinfo() is a PHP function or a snippet of code that takes in one or more parameters & returns a value. Running phpinfo() will display information regarding your site’s PHP configuration, including:The current version of PHP your site is running.Your vps information & environment.The PHP environment.Your Operating System (OS) version information.Master & local values for PHP configuration options.Modules và extensions currently in use.
Using the function alone will return all available information. However, there are also a handful of parameters you can use, in order to lớn access only the specific information you want lớn see. These include:
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INFO_GENERAL: Displays the configuration line, web server, OS, & more.INFO_CREDITS: Shows a danh mục of PHP developers, modules, etc.INFO_CONFIGURATION: Returns the current local and master directives.INFO_MODULES: Shares all extensions và their settings.INFO_ENVIRONMENT: Includes all environment variable information.INFO_LICENSE: Displays the PHP License.INFO_ALL: Returns all available information (you can accomplish the same thing by using no parameters).
One way to lớn use the phpinfo() function is by creating a phpinfo page, as we’ll describe later in this post. However, it’s important to chú ý that you can find some of the information above without the extra trouble of using that function.
For example, the WordPress Site Health feature included in version 5.2 & above can nói qua details about your web server, PHP version, memory limit, & more. Simply navigate to lớn Tools > Site Health > Info > Server to find this data:
Rather than checking for these pieces of information, phpinfo() is more suited to assist you with debugging attempts. The EGPCS data available via this function makes it particularly helpful in that regard.
Suggested reading: How lớn Improve PHP Memory Limit in WordPress.
How to Create a phpinfo Page (In 3 Steps)
If you have a basic understanding of tệp tin Transfer Protocol (FTP) và how to lớn use an FTP client, creating a phpinfo page is really quite simple. In the following sections, we’ve broken it down into three short steps.
Step 1: Create a phpinfo.php File and Upload It khổng lồ Your Server
To start creating this page, mở cửa up your preferred text editor. In a new document, showroom the following line of code:
If you wish lớn use one of the parameters mentioned above, you should insert it between the parentheses here. Then, save the file as “phpinfo.php”. If you prefer, you can use a different name (we’ll explain why you might want to bởi vì so in Step 3), but you must use the .php extension.
Next, xuất hiện up FileZilla or another FTP client, & connect to lớn your site’s hệ thống using your FTP credentials. Then, upload your new phpinfo.php tệp tin to the public_html folder:
You’ve now successfully added the phpinfo page lớn your site. In order lớn view the page, however, you’ll need to lớn know where khổng lồ find it.
Step 2: Access the phpinfo Page in Your Browser
Once it’s uploaded lớn your server, your phpinfo page will become publicly available. This means you (and anyone else) can view it in a browser by appending /phpinfo.php to lớn the over of your site’s domain:
If you didn’t use any parameters and chose khổng lồ return all of your PHP information, this page will likely be quite long. You can locate the specific details you’re looking for by using the Find function (CTRL or CMD + F) on your computer:
You can now use this information to carry out any necessary debugging or other tasks.
Step 3: Delete or Rename Your phpinfo Page
As we mentioned in Step 2, because your phpinfo.php tệp tin was placed in your public_html folder, it’s now publically available. The problem with this is that some of the information the phpinfo() function returns is sensitive và could help a malicious hacker gain access to lớn your server.
Attackers may even employ bots to search for phpinfo pages in order to lớn exploit them. For this reason, once you’ve finished using yours, it’s best lớn delete it. You can do so by returning to lớn your FTP client.
Then, connect to lớn your server again and mở cửa public_html. Right-click on your phpinfo.php file & select Delete:
Alternatively, some users choose to rename their phpinfo page to lớn help hide it from hackers. You might use a random string of letters and numbers, for example, instead of “phpinfo”. Note that this will change the URL you use khổng lồ access your phpinfo page as well.
This means that you’ll need to remember the name you assign khổng lồ your phpinfo page so you can reach it whenever you like. However, this isn’t a guaranteed solution for preventing a security breach, so it’s best to lớn simply create the page when needed & then delete it.A phpinfo page gather lots of useful information about your PHP configuration. Learn how to create one for your WordPress site! ℹ️