Help installing PHP on Ubuntu (Solved. Thank you!)

(I’m currently using Firefox 124.01 on Ubuntu 22.04.03 LTS) (My formatting is also givinge problems… I want to eat my own eyeballs out right now…)

I’m very new to Linux, and trying to get PHP installed, but it won’t render anything…

Following this guide (ubuntu.com/server/docs/programming-php), I started with:


<span style="color:#323232;">sudo apt update
</span><span style="color:#323232;">sudo apt install apache2
</span>

Test Page Success!

So I continue with:


<span style="color:#323232;">sudo apt install php libapache2-mod-php
</span><span style="color:#323232;">sudo apt install php-mysql
</span><span style="color:#323232;">sudo apt install php-cgi
</span>

Then:


<span style="color:#323232;">sudo systemctl restart apache2.service
</span>

I write the following in /var/www/html/index.php:


<span style="color:#323232;"><?php
</span><span style="color:#323232;">
</span><span style="color:#323232;">phpinfo();
</span><span style="color:#323232;">
</span><span style="color:#323232;">Test Text1
</span><span style="color:#323232;">
</span><span style="color:#323232;">?>
</span><span style="color:#323232;">
</span><span style="color:#323232;">Test Text2
</span>

I see “Test Text2” and nothing else. I see my PHP tags and their contents upon source inspection.

Then I perform the following:


<span style="color:#323232;">apt list --installed | grep php
</span><span style="color:#323232;">sudo apt purge php
</span><span style="color:#323232;">apt list --installed | grep php (0 Results)
</span>

And try again:


<span style="color:#323232;">sudo apt install php libapache2-mod-php
</span><span style="color:#323232;">sudo apt install php-mysql
</span><span style="color:#323232;">sudo apt install php-cgi
</span><span style="color:#323232;">
</span><span style="color:#323232;">sudo systemctl restart apache2.service
</span>

No luck… Any ideas what’s going on?

A little additional info:


<span style="color:#323232;">~$ which php
</span><span style="color:#323232;">/usr/bin/php
</span>


<span style="color:#323232;">~$ php -v
</span><span style="color:#323232;">PHP 8.1.2-1ubuntu2.14 (cli) (built: Aug 18 2023 11:41:11) (NTS)
</span><span style="color:#323232;">Copyright (c) The PHP Group
</span><span style="color:#323232;">Zend Engine v4.1.2, Copyright (c) Zend Technologies
</span><span style="color:#323232;">    with Zend OPcache v8.1.2-1ubuntu2.14, Copyright (c), by Zend Technologies
</span>


<span style="color:#323232;">~$ apt list --installed | grep php
</span><span style="color:#323232;">
</span><span style="color:#323232;">WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
</span><span style="color:#323232;">
</span><span style="color:#323232;">libapache2-mod-php8.1/jammy-updates,jammy-security,now 8.1.2-1ubuntu2.14 amd64 [installed,automatic]
</span><span style="color:#323232;">libapache2-mod-php/jammy,jammy,now 2:8.1+92ubuntu1 all [installed]
</span><span style="color:#323232;">php-common/jammy,jammy,now 2:92ubuntu1 all [installed,automatic]
</span><span style="color:#323232;">php-mysql/jammy,jammy,now 2:8.1+92ubuntu1 all [installed]
</span><span style="color:#323232;">php8.1-cli/jammy-updates,jammy-security,now 8.1.2-1ubuntu2.14 amd64 [installed,automatic]
</span><span style="color:#323232;">php8.1-common/jammy-updates,jammy-security,now 8.1.2-1ubuntu2.14 amd64 [installed,automatic]
</span><span style="color:#323232;">php8.1-mysql/jammy-updates,jammy-security,now 8.1.2-1ubuntu2.14 amd64 [installed,automatic]
</span><span style="color:#323232;">php8.1-opcache/jammy-updates,jammy-security,now 8.1.2-1ubuntu2.14 amd64 [installed,automatic]
</span><span style="color:#323232;">php8.1-readline/jammy-updates,jammy-security,now 8.1.2-1ubuntu2.14 amd64 [installed,automatic]
</span><span style="color:#323232;">php8.1/jammy-updates,jammy-updates,jammy-security,jammy-security,now 8.1.2-1ubuntu2.14 all [installed,automatic]
</span><span style="color:#323232;">php/jammy,jammy,now 2:8.1+92ubuntu1 all [installed]
</span>


<span style="color:#323232;">/etc/apache2/mods-enabled$ ls
</span><span style="color:#323232;">access_compat.load  authz_core.load  deflate.load  mime.load         php8.1.load      status.load
</span><span style="color:#323232;">alias.conf          authz_host.load  dir.conf      mpm_prefork.conf  reqtimeout.conf
</span><span style="color:#323232;">alias.load          authz_user.load  dir.load      mpm_prefork.load  reqtimeout.load
</span><span style="color:#323232;">auth_basic.load     autoindex.conf   env.load      negotiation.conf  setenvif.conf
</span><span style="color:#323232;">authn_core.load     autoindex.load   filter.load   negotiation.load  setenvif.load
</span><span style="color:#323232;">authn_file.load     deflate.conf     mime.conf     php8.1.conf       status.conf
</span>
dbx12, (edited )

Looks like your php code is wrong, try this (and just this) for index.php


<span style="color:#323232;"><?php
</span><span style="color:#323232;">phpinfo();
</span>

You also had Test Text1 inside the php block which is a syntax error. Maybe that’s the cause why you don’t get anything.

Edit corrected the filename to lowercase extension.

GardenVarietyAnxiety,

I wiped and reinstalled everything php and apache… It still didn’t work, so I tried your suggestion and simply put

<?php phpinfo();

It works now? And reverting to my original file works too…

I don’t know how, but your idea worked. Thanks~

dbx12,

Great that it worked out, did you use apt remove or apt purge?

You might want to put your code in triple back ticks so it renders as code block :) Currently isn’t visible on some clients (boost for Lemmy in my case)

sloppy_diffuser,

I don’t have a solution, but wanted to comment this is a reason to use docker. Instead of tinkering with your host system in ways you’ll probably forget, declare all the steps in a nice containerized system that does one thing: hosts a php website as you develop.

Expose your project through a volume for a mostly seamless file sharing experience between the host and container.

GardenVarietyAnxiety,

I’ve seen a lot about docker, and it looks pretty awesome.

I’ll definitely get to it eventually, I’m just trying to learn the basics for now.

hitmyspot,

Have you tried a html file to ensure Apache is ok? Or no files and Apache should show a server page.

Also, the test file can just be

<?php phpinfo(); ?>

GardenVarietyAnxiety,

I wiped and reinstalled everything php and apache… It still didn’t work, so I tried to simply put

<?php phpinfo();

as suggested by someone else …and it works now? I reverted my .php file to what I listed in my op and that works now, too.

Oi.

hitmyspot,

Lol, turn it off and back on!

GardenVarietyAnxiety,

Basically, lol

littleme,

Have you tried enabling php with the a2enmod command ? serverlab.ca/…/installing-php-for-apache-on-ubunt…

GardenVarietyAnxiety,

It returned: Module php8.1 already enabled

onlinepersona,

Was that the output of sudo a2enmod php ?

GardenVarietyAnxiety,

I wiped and reinstalled everything php and apache… It still didn’t work, so I tried to simply put

<?php phpinfo();

as suggested by someone else …and it works now? I reverted my .php file to what I listed in my op and that works now, too.

Oi.

onlinepersona,

😂 welcome to the wonderful world of computing.

If it shan’t dance to your flute, reboot

Anti Commercial AI thingyCC BY-NC-SA 4.0

raoul,
@raoul@lemmy.sdf.org avatar

Maybe there is a conflict between libapache2-mod-php and php-cgi?

According to your doc, it seems to be one or the other.

GardenVarietyAnxiety,

I wiped and reinstalled everything php and apache… It still didn’t work, so I tried to simply put

<?php phpinfo();

as suggested by someone else …and it works now? I reverted my .php file to what I listed in my op and that works now, too.

Oi.

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