Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.Jul 15, 2019 · Don't mass-update sites currently running 7.2 (version 1) to php 7.4 (version 3) I made a simple bash script to update users' config, to swap it's php version selector. If you run this, and modify the options.conf values, effectively the users' php version stays the same, but the php1_release (and therefore the default) will change. A PHP script will use the server's master php.ini configuration file with standard PHP selected if the script's directory does not contain a php.ini file. Each hosting account initially has a copy of the php.ini file in the public_html directory.Function arguments. ¶. Information may be passed to functions via the argument list, which is a comma-delimited list of expressions. The arguments are evaluated from left to right, before the function is actually called ( eager evaluation). PHP supports passing arguments by value (the default), passing by reference, and default argument values.Enter the necessary details to tell IIS that *.php files should be run by php-cgi.exe through FastCGI: Now, select your server in the Connections pane of IIS Manager and choose “Default Document.”. In the subsequent Actions pane, click “Add…” and add “index.php.”. You can also add other files, like “Default.php.”.To change the PHP settings, open your User or Workspace Settings ( ⌘, (Windows, Linux Ctrl+,)) and type 'php' to filter the list of available settings. To set the PHP executable path, select the Edit in settings.json link under PHP > Validate: Executable Path, which will open your user settings.json file.Go to File Manager on your CPanel >>> Public html >>> find the .htaccess file >>> right click on the on it >>>> click edit. see picture. Type the number of the version you want to change to. i.e - 73, 70 or 71. Hope this helps. After that, save changes.To change the version your Apache server is using all you have to do is: root@debian:~# a2dismod php5 && a2enmod php7.0 Module php5 disabled. To activate the new configuration, you need to run: service apache2 restart Considering conflict php5 for php7.0: Enabling module php7.0. PHP allows you to use a scalar value, an array, and null as the default arguments. The order of default parameters When you use default parameters, it’s a good practice to place them after the parameters that don’t have default values.Feb 21, 2022 · Below are the steps for adding a php.ini file to your account. Log into your cPanel account. Open your File Manager. Navigate to your public_html directory. Create a new file. Name it php.ini. Edit the php.ini file you just created. Copy and Paste the default php.ini code from the copy of the default version below. Click Save Changes. PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. Start learning PHP now ». But in this case I have a PHP script that grabs inputs data and displays it using value="<?php echo get_option('your_name'); ?>". So I have no idea how to force my form to display "Mike" in my input. So I have no idea how to force my form to display "Mike" in my input.To select default PHP version in Ubuntu, run This will show a menu, you can select the default php version After setting PHP 5.6 as default PHP version…There are three access modifiers: public - the property or method can be accessed from everywhere. This is default. protected - the property or method can be accessed within the class and by classes derived from that class. private - the property or method can ONLY be accessed within the class. In the following example we have added three ...Similarly, if you need to configure PHP 7.4 as the default version in your system. The following set of commands will change the default PHP to 7.4 for the Apache web server and command line interface. ADVERTISEMENT. Apache: sudo a2dismod php* sudo a2enmod php7.4 sudo systemctl restart apache2. Command line interface:4. Download Default php.ini Files. Below are the default php.ini files for seven different versions of PHP from PHP 5.4 to PHP 7.3. Right click the link below and Save Link As to your computer. Download default php.ini 5.4. Download default php.ini 5.5. Download default php.ini 5.6.In the Executable box, type the full path to Php-cgi.exe, for example C:\PHP\Php-cgi.exe. In Name, type a name for the module mapping, for example FastCGI. Click OK. Select the hostname of your computer in the Connections panel, and double-click Default Document. In the Action panel, click Add. Type Index.php in the Name box, and then click OK.If your PHP install uses the MySQL Native Driver (mysqlnd), your MySQL server is 5.6 or later, and your SSL certificate is self-signed, there is a chance your SSL connection will fail due to validation. Setting this to false will disable the validation check. Since PHP 5.6.0 it also verifies whether server name matches CN of its certificate.php [PATH] or [HOST] sections; Note that some settings like disable_functions can only be set once in the main php.ini file, and cannot be overridden by other areas, but this varies per php-mode. php-modes like php-fpm/fastcgi are much more stand-alone php instances, so you can get away with these types of overrides, away from the main php.ini.Jun 7, 2023 · Navigate to the directory where you will either save or edit the PHP.INI file and then select the file and use the Code Editor. To open the file, you can click on it to select the file and then click on the Code Editor icon in the menu bar of the File Manager. You can also right-click with your mouse and select Code Editor from the menu that ... May 6, 2010 · Which gives me PHP version 5.6.10- the correct PHP version needed for my application. When I tried in terminal: php -i or php -v It shows me PHP version 5.3.2 which I don’t need. The version of PHP available from the command line has 100% nothing to do with the version of PHP loaded as a module. These are completely separate things. Mar 13, 2014 · and. "You can create custom php.ini files for each directory in your web site, but many people configure settings in one php.ini file and then apply it to the entire web site. To do this, add the following line to the .htaccess file in your web site's document root directory. Replace USERNAME with your A2 Hosting username: Aug 1, 2023 · List of php.ini directives. This list includes the php.ini directives you can set to configure your PHP setup. The "Changeable" column shows the modes determining when and where a directive may be set. See the Changeable mode values section for their definitions. But in this case I have a PHP script that grabs inputs data and displays it using value="<?php echo get_option('your_name'); ?>". So I have no idea how to force my form to display "Mike" in my input. So I have no idea how to force my form to display "Mike" in my input.PHP provides us with two major types of functions: Built-in functions : PHP provides us with huge collection of built-in library functions. These functions are already coded and stored in form of functions. To use those we just need to call them as per our requirement like, var_dump, fopen (), print_r (), gettype () and so on.May 4, 2022 · If you would like to use a different version of PHP on your Ubuntu 22.04 server, you can use the phpenv project to install and manage different versions. Run the following commands to update your list of available packages, then then install PHP 8.1: sudo apt update. sudo apt install --no-install-recommends php8.1. A PHP script will use the server's master php.ini configuration file with standard PHP selected if the script's directory does not contain a php.ini file. Each hosting account initially has a copy of the php.ini file in the public_html directory. Aug 9, 2018 · The final stable PHP 5.6 version has reached the end of active support as of 19 Jan 2017. However, PHP 5.6 will continue to receive support for critical security issues until 31 Dec 2018. So, It is recommended to upgrade all your PHP applications to be compatible with PHP 7 .x as soon as possible. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.On my mac I've got php installed and working fine. I recently wanted to install mcrypt, so I did so using brew. Although it seemed to install fine, it doesn't show up in my phpinfo().PHP abbreviated as “HyperText Processor”, is the open-source programming language used for Web application development. It is a scripting language, mostly used for the front end with HTML. It can be used to create e-commerce websites, manage databases, and do session monitoring. It is available for all OS. The latest version of PHP is versionFeb 3, 2023 · Please note that PHP-FPM can be used on Apache and Nginx servers, while FastCGI is available only for Apache servers. 2 Add SURY repository. Add the repository: PHP Date/Time Introduction. The date/time functions allow you to get the date and time from the server where your PHP script runs. You can then use the date/time functions to format the date and time in several ways. Note: These functions depend on the locale settings of your server. Remember to take daylight saving time and leap years into ...Aug 18, 2023 · Replace [extension] with the extension you want to install, if you want to add multiple extensions then include them in braces, I am going to install “php-mbstring, php-mysql, php-xml, and php-curl” by running the below-mentioned command: sudo apt install php8.2-mysql php8.2-mbstring php8.2-xml php8.2-curl Aug 1, 2023 · List of php.ini directives. This list includes the php.ini directives you can set to configure your PHP setup. The "Changeable" column shows the modes determining when and where a directive may be set. See the Changeable mode values section for their definitions. Dec 1, 2019 · PHP is a server-side scripting language created in 1995 by Rasmus Lerdorf. PHP is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML. What is PHP used for? As of October 2018, PHP is used on 80% of websites whose server-side language is known. It is typically ... In the following tutorial, we will install PHP 5.6 for a subdomain via hPanel: Log in to your hPanel and select Hosting. Click Manage next to your desired domain. Go to Files → File Manager. Access the folder whose PHP version you want to change. To edit a subdomain, go to public_html → yoursubdomain folder.Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.Apr 18, 2013 · However, as part of my installation, I had to install php5-dev so I guess this has installed another PHP on the server (I needed to do this for phpize). My main PHP binary is at /usr/local/php/bin. However, when I run php from the command line with something like this php --ini I get the following: PHP Date/Time Introduction. The date/time functions allow you to get the date and time from the server where your PHP script runs. You can then use the date/time functions to format the date and time in several ways. Note: These functions depend on the locale settings of your server. Remember to take daylight saving time and leap years into ... Note. If you order this list of default documents correctly, you can improve the performance of IIS. For example, if you intended to use Index.php for the home page in all the folders of your Web site and you add Index.php to the bottom of the list of default documents, IIS will have to check for each of the default documents in the list before attempting to return Index.php to the client browser.Dec 14, 2022 · Step 1: Create a phpinfo.php File and Upload It to Your Server. To start creating this page, open up your preferred text editor. In a new document, add the following line of code: If you wish to use one of the parameters mentioned above, you should insert it between the parentheses here. Description of core php.ini directives. This list includes the core php.ini directives you can set to configure your PHP setup. Directives handled by extensions are listed and detailed at the extension documentation pages respectively; Information on the session directives for example can be found at the sessions page.I have multiple versions of php installed on my mac and will switch it in ~/.zshrc depending on the project I am using. Simply uncomment the one you want to use and comment the one you no longer wish to use.In the top right of the Set PHP Version per Domain section, click the drop-down menu next to PHP Version and select the desired PHP version. Click the Apply button to change the PHP version of each of the selected domains to the selected PHP version. Please see our documentation for more information: MultiPHP Manager for cPanel.Manually creating the file¶. To manually create the file, simply use your text editor to create the file config.inc.php (you can copy config.sample.inc.php to get a minimal configuration file) in the main (top-level) phpMyAdmin directory (the one that contains index.php). phpMyAdmin first loads libraries/config.default.php and then overrides those values with anything found in config.inc.php.Mar 9, 2023 · In the Executable box, type the full path to Php-cgi.exe, for example C:\PHP\Php-cgi.exe. In Name, type a name for the module mapping, for example FastCGI. Click OK. Select the hostname of your computer in the Connections panel, and double-click Default Document. In the Action panel, click Add. Type Index.php in the Name box, and then click OK. Mar 15, 2017 · Have a look at config.sample.inc.php: you will find examples of the configuration directives that you should copy to your config.inc.php (copy the missing ones). Then, have a look at examples/create_tables.sql which will help you create the missing tables. Aug 1, 2023 · All it does is display: Hello World using the PHP echo statement. Note that the file does not need to be executable or special in any way. The server finds out that this file needs to be interpreted by PHP because you used the ".php" extension, which the server is configured to pass on to PHP. A PHP script will use the server's master php.ini configuration file with standard PHP selected if the script's directory does not contain a php.ini file. Each hosting account initially has a copy of the php.ini file in the public_html directory. Aug 1, 2023 · List of php.ini directives. This list includes the php.ini directives you can set to configure your PHP setup. The "Changeable" column shows the modes determining when and where a directive may be set. See the Changeable mode values section for their definitions. Enter the necessary details to tell IIS that *.php files should be run by php-cgi.exe through FastCGI: Now, select your server in the Connections pane of IIS Manager and choose “Default Document.”. In the subsequent Actions pane, click “Add…” and add “index.php.”. You can also add other files, like “Default.php.”.List of php.ini directives. This list includes the php.ini directives you can set to configure your PHP setup. The "Changeable" column shows the modes determining when and where a directive may be set. See the Changeable mode values section for their definitions.Description of core php.ini directives. This list includes the core php.ini directives you can set to configure your PHP setup. Directives handled by extensions are listed and detailed at the extension documentation pages respectively; Information on the session directives for example can be found at the sessions page.and. "You can create custom php.ini files for each directory in your web site, but many people configure settings in one php.ini file and then apply it to the entire web site. To do this, add the following line to the .htaccess file in your web site's document root directory. Replace USERNAME with your A2 Hosting username:PHP User Defined Functions. Besides the built-in PHP functions, it is possible to create your own functions. A function is a block of statements that can be used repeatedly in a program. A function will not execute automatically when a page loads. A function will be executed by a call to the function. Caution. When using the optional directory level argument N, as described above, note that using a value higher than 1 or 2 is inappropriate for most sites due to the large number of directories required: for example, a value of 3 implies that (2 ** session.sid_bits_per_character) ** 3 directories exist on the filesystem, which can result in a lot of wasted space and inodes.The configuration file ( php.ini ) is read when PHP starts up. For the server module versions of PHP, this happens only once when the web server is started. For the CGI and CLI versions, it happens on every invocation. SAPI module specific location (PHPIniDir directive in Apache 2, -c command line option in CGI and CLI) The PHPRC environment ..."I want to get a value from the session, but use a default if it is not defined. And ofcourse I want to circumvent the PHP notice." This can be achieved exactly as requested by using (if the 'derp' session variable is not set): print @$_SESSION['derp']?:"default"; That said, yes, if it's false, it will return the default, but that's how logic ...In the top right of the Set PHP Version per Domain section, click the drop-down menu next to PHP Version and select the desired PHP version. Click the Apply button to change the PHP version of each of the selected domains to the selected PHP version. Please see our documentation for more information: MultiPHP Manager for cPanel.Dec 11, 2013 · On my mac I've got php installed and working fine. I recently wanted to install mcrypt, so I did so using brew. Although it seemed to install fine, it doesn't show up in my phpinfo(). Where src/ is the directory containing all your PHP code. Then, run the commands to build and run the Docker image: $ docker build -t my-php-app . $ docker run -d --name my-running-app my-php-app. We recommend that you add a php.ini configuration file; see the "Configuration" section for details.Have a look at config.sample.inc.php: you will find examples of the configuration directives that you should copy to your config.inc.php (copy the missing ones). Then, have a look at examples/create_tables.sql which will help you create the missing tables.Oct 18, 2010 · The php.ini file on the system is there merely to override those pre-compiled defaults. If there's no php.ini, the compile-time values are in charge. It does load default settings, yes. And if you want to see these default settings.. phpinfo () function in a PHP file will do the trick. I have multiple versions of php installed on my mac and will switch it in ~/.zshrc depending on the project I am using. Simply uncomment the one you want to use and comment the one you no longer wish to use.Apr 12, 2022 · Disable current PHP version. Assuming you have a PHP 8.1 currently set as the default PHP version, here is how to disable it – sudo a2dismod php8.1 Enable new PHP version. Now we can switch to any installed PHP version using a2enmod – sudo a2enmod php7.4. Do not forget to restart apache server after switching PHP version. sudo service ... Netbeans 12.3 fully supports PHP 8.0 syntax including this feature, with the exception of code completion for named arguments. Share. Improve this answer.Click on the Advanced system settings link in the left column. From the System Properties window, click on the Advanced tab, and then click on the Environment Variables button at the bottom. Select the Path variable from the System Variables section, and then click on Edit. Add: c:\php to your system path.Enter the necessary details to tell IIS that *.php files should be run by php-cgi.exe through FastCGI: Now, select your server in the Connections pane of IIS Manager and choose “Default Document.”. In the subsequent Actions pane, click “Add…” and add “index.php.”. You can also add other files, like “Default.php.”.The final stable PHP 5.6 version has reached the end of active support as of 19 Jan 2017. However, PHP 5.6 will continue to receive support for critical security issues until 31 Dec 2018. So, It is recommended to upgrade all your PHP applications to be compatible with PHP 7 .x as soon as possible.Oct 11, 2021 · It seems that the php:5 Dockerfile installs php 5, puts the php.ini inside /etc/php5/cli/php.ini and, as you told, expects to find something into /usr/local/etc/php. So if that is the case, the possible solution should be: put a php.ini inside that path ( and then I can use my production php.ini or any other) OR I think I could change that path ... The eval function executes PHP code passed to it as a string. So the code takes that big base64 string, turns it back into raw binary data using base64_decode, then runs that raw data through gzinflate, since the obfuscator originally ran the data through gzdeflate.To change the PHP settings, open your User or Workspace Settings ( ⌘, (Windows, Linux Ctrl+,)) and type 'php' to filter the list of available settings. To set the PHP executable path, select the Edit in settings.json link under PHP > Validate: Executable Path, which will open your user settings.json file.Feb 10, 2021 · I have multiple versions of php installed on my mac and will switch it in ~/.zshrc depending on the project I am using. Simply uncomment the one you want to use and comment the one you no longer wish to use. How to install PHP 5.6 and 7.0 - 8.2 with PHP-FPM and FastCGI mode for ISPConfig 3.2 with apt on Ubuntu 18.04 - 22.04 >Go to File Manager on your CPanel >>> Public html >>> find the .htaccess file >>> right click on the on it >>>> click edit. see picture. Type the number of the version you want to change to. i.e - 73, 70 or 71. Hope this helps. After that, save changes.To change the version your Apache server is using all you have to do is: root@debian:~# a2dismod php5 && a2enmod php7.0 Module php5 disabled. To activate the new configuration, you need to run: service apache2 restart Considering conflict php5 for php7.0: Enabling module php7.0.Mar 9, 2023 · In the Executable box, type the full path to Php-cgi.exe, for example C:\PHP\Php-cgi.exe. In Name, type a name for the module mapping, for example FastCGI. Click OK. Select the hostname of your computer in the Connections panel, and double-click Default Document. In the Action panel, click Add. Type Index.php in the Name box, and then click OK. 1. Try the following: sudo a2dismod php8.0.19 sudo a2enmod php8.0.15. It should work, or see this. Edit: Considering there's no specific module for 8.0.x version for apache, it seems that you have to purge php, and install only the desired 8.0.15 version, as someone did here. Although that would solve your problem (most likely, not tested), it ...There are two methods to switch php versions on the command line ubuntu. Run each command one by one and input the number of the php version you want to change. Method 1. sudo update-alternatives --config php sudo update-alternatives --config phar sudo update-alternatives --config phar.phar sudo service apache2 restart. Method 2.Step 2: Installing Multiple PHP Versions on Ubuntu 22.04. The easiest way to install multiple versions of PHP is by using the PPA from Ondřej Surý, who is a Debian developer. To add this PPA, run the following commands in the terminal. The software-properties-common package is needed if you want to install software from PPA. Jan 28, 2013 · The eval function executes PHP code passed to it as a string. So the code takes that big base64 string, turns it back into raw binary data using base64_decode, then runs that raw data through gzinflate, since the obfuscator originally ran the data through gzdeflate. Mar 3, 2023 · In the following tutorial, we will install PHP 5.6 for a subdomain via hPanel: Log in to your hPanel and select Hosting. Click Manage next to your desired domain. Go to Files → File Manager. Access the folder whose PHP version you want to change. To edit a subdomain, go to public_html → yoursubdomain folder. If you have permission to SSH into the remote server, use the command line to check the installed PHP version. This method is also useful for checking the PHP version installed locally. 1. Type the PHP command: php -v. 2. The php -v command works on Linux, macOS, Windows, and other supported systems. Its output contains the PHP version number ...Nov 18, 2022 · Download PHP driver. When retrieving data from the server, the Microsoft Drivers for PHP for SQL Server converts data to a default PHP data type if no PHP data type has been specified by the user. When data is returned using the PDO_SQLSRV driver, the data type will either be int or string. The remainder of this topic discusses default data ... default: code to be executed if n is different from all labels; } This is how it works: First we have a single expression n (most often a variable), that is evaluated once. The value of the expression is then compared with the values for each case in the structure. If there is a match, the block of code associated with that case is executed.The php.ini file on the system is there merely to override those pre-compiled defaults. If there's no php.ini, the compile-time values are in charge. It does load default settings, yes. And if you want to see these default settings.. phpinfo () function in a PHP file will do the trick.If this is the case a prefer to run directly the php desired bin pointing to the executable script of composer, for example, in my case I have php 8.1 and 7.4, my main php version configured for CLI is 8.1, but I want to run composer with 7.4 in some projects, so I run this command:
Jan 16, 2017 · Download Default php.ini File. Setting up a php.ini file is a fairly straightforward and simple process. In short, the php.ini file allows you to customize the settings on the server specifically for your account. A real life example may look like the following; your server’s upload_max_filesize is set to 5M, but you need the ability to ... . Shanor northvue
Feb 3, 2023 · Command 1: Disable php command execution with the old PHP version. Choose y when asked. Command 2: Associate the php command with the new PHP version path. Command 3: Check the default PHP version just linked. Here is a process of change my default PHP version: Dec 1, 2019 · PHP is a server-side scripting language created in 1995 by Rasmus Lerdorf. PHP is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML. What is PHP used for? As of October 2018, PHP is used on 80% of websites whose server-side language is known. It is typically ... PHP Date/Time Introduction. The date/time functions allow you to get the date and time from the server where your PHP script runs. You can then use the date/time functions to format the date and time in several ways. Note: These functions depend on the locale settings of your server. Remember to take daylight saving time and leap years into ... The configuration file ( php.ini ) is read when PHP starts up. For the server module versions of PHP, this happens only once when the web server is started. For the CGI and CLI versions, it happens on every invocation. SAPI module specific location (PHPIniDir directive in Apache 2, -c command line option in CGI and CLI) The PHPRC environment ...Below are the steps for adding a php.ini file to your account. Log into your cPanel account. Open your File Manager. Navigate to your public_html directory. Create a new file. Name it php.ini. Edit the php.ini file you just created. Copy and Paste the default php.ini code from the copy of the default version below. Click Save Changes.Jun 7, 2023 · Navigate to the directory where you will either save or edit the PHP.INI file and then select the file and use the Code Editor. To open the file, you can click on it to select the file and then click on the Code Editor icon in the menu bar of the File Manager. You can also right-click with your mouse and select Code Editor from the menu that ... If you have multiple PHP versions installed, Virtualmin allows you to choose execution mode and PHP version used for a given domain. Available execution modes are FPM (recommended) and CGI/FCGId. The latter mode enables you to set different PHP versions on per-directory basis. Installing on Alma, Rocky, CentOS Stream, Fedora LinuxSep 24, 2012 · Go to File Manager on your CPanel >>> Public html >>> find the .htaccess file >>> right click on the on it >>>> click edit. see picture. Type the number of the version you want to change to. i.e - 73, 70 or 71. Hope this helps. After that, save changes. php [PATH] or [HOST] sections; Note that some settings like disable_functions can only be set once in the main php.ini file, and cannot be overridden by other areas, but this varies per php-mode. php-modes like php-fpm/fastcgi are much more stand-alone php instances, so you can get away with these types of overrides, away from the main php.ini.Manually creating the file¶. To manually create the file, simply use your text editor to create the file config.inc.php (you can copy config.sample.inc.php to get a minimal configuration file) in the main (top-level) phpMyAdmin directory (the one that contains index.php). phpMyAdmin first loads libraries/config.default.php and then overrides those values with anything found in config.inc.php.At the time of PHP installation, php.ini is a special file provided as a default configuration file. It’s very essential configuration file which controls, what a user can or cannot do with the website. Each time PHP is initialized, the php.ini file is read by the system. Sometimes you need to change the behavior of PHP at runtime, then this ...Which gives me PHP version 5.6.10- the correct PHP version needed for my application. When I tried in terminal: php -i or php -v It shows me PHP version 5.3.2 which I don’t need. The version of PHP available from the command line has 100% nothing to do with the version of PHP loaded as a module. These are completely separate things.The final stable PHP 5.6 version has reached the end of active support as of 19 Jan 2017. However, PHP 5.6 will continue to receive support for critical security issues until 31 Dec 2018. So, It is recommended to upgrade all your PHP applications to be compatible with PHP 7 .x as soon as possible.Oct 18, 2019 · Install PHP. The following command will install PHP and some of the most common PHP modules: sudo dnf install php php-opcache php-gd php-curl php-mysqlnd. FPM is installed as a dependency and used as a FastCGI server. Start the FPM service and enable it to automatically start on boot: sudo systemctl enable --now php-fpm. If you have permission to SSH into the remote server, use the command line to check the installed PHP version. This method is also useful for checking the PHP version installed locally. 1. Type the PHP command: php -v. 2. The php -v command works on Linux, macOS, Windows, and other supported systems. Its output contains the PHP version number ....