chore: update PHP8.4 with suggestion from Matt Setter

Author: tomasnorre

Diff for: source/_posts/php84-on-ubuntu-2410.md

@@ -16,21 +16,21 @@ As of December 2024, the Ondřej Surý PPA does not provide support for Ubuntu 2
 To install PHP 8.4 on Ubuntu 24.10, you can modify the PPA's configuration to use packages from Ubuntu 24.04 (Noble). Here's how:
 
 1. **Remove and Re-add the Ondřej Surý PPA:**
-```shell 
+```shell
 sudo add-apt-repository --remove ppa:ondrej/php
-sudo add-apt-repository ppa:ondrej/php 
+sudo add-apt-repository ppa:ondrej/php
 ```
 This ensures a clean configuration of the PPA.
 
 2. **Modify the PPA's Release Suite:**
-```shell 
+```shell
 sudo sed -i 's/oracular/noble/g' /etc/apt/sources.list.d/ondrej-ubuntu-php-oracular.sources
 ```
 This command changes the release suite from 'oracular' (24.10) to 'noble' (24.04), allowing you to access PHP packages intended for Ubuntu 24.04.
 
 3. **Update Package Lists:**
 
-```shell 
+```shell
 sudo apt update
 ```
 This refreshes your package lists to include the modified PPA configuration.
@@ -42,6 +42,31 @@ sudo apt install php8.4
 ```
 This installs PHP 8.4 from the modified PPA.
 
+####I have multiple PHP versions installed, what to do then?
+
+No worries, in ubuntu you have a backed in option, so set your default PHP version. Running the command as below, you can
+set your default version. If you choose auto mode, it will choose the newest version installed.
+
+Auto mode means the system will automatically select the alternative with the highest priority. If a new version of PHP is installed with a higher priority, the system may switch to that version without manual intervention.
+In the above example, PHP 7.4 is in auto mode. If you install PHP 8.2 with a priority of 100, the system will automatically switch to PHP 8.2.
+
+```shell
+sudo update-alternatives --config php
+[sudo] password for tomas:
+There are 6 choices for the alternative php (providing /usr/bin/php).
+
+  Selection    Path             Priority   Status
+------------------------------------------------------------
+  0            /usr/bin/php8.4   84        auto mode
+  1            /usr/bin/php7.4   74        manual mode
+  2            /usr/bin/php8.0   80        manual mode
+  3            /usr/bin/php8.1   81        manual mode
+  4            /usr/bin/php8.2   82        manual mode
+* 5            /usr/bin/php8.3   83        manual mode
+  6            /usr/bin/php8.4   84        manual mode
+```
+
+
 **Important Considerations:**
 
 * Compatibility: Using packages from a different Ubuntu release can lead to compatibility issues. Proceed with caution and test thoroughly.