PHP/fr

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	Skill level: Medium
	The instructions on this page require a basic knowledge of linux.

php

php logo
Maintainer	John Crisp
Url	https://www.php.net/
Licence	MIT license
Category	web
Tags	www, http, ssl

Mainteneur

John Crisp

Description

A partir de la version 10 du serveur Koozali SME, le module php n'est plus utilisé pour httpd. Au lieu de cela, nous nous appuyons sur php-fpm qui peut activer toutes les versions disponibles de php.

Par défaut, nous fournissons les versions suivantes :

• 54 (maintenue par Red-Hat jusqu'à CentOS 7 ; fin de vie : 30 juin 2024).
• 55,56,70,71,72 (Note : non supporté !).
• 73 (supportée jusqu'au 6 déc. 2021).
• 74 (supportée jusqu'au 28 nov. 2022).
• 80 (supportée jusqu'au 26 nov. 2023).

Clés db disponibles pour contrôler la configuration et les services PHP

Vous devez d'abord décider si vous souhaitez modifier le comportement de PHP pour une baie d'information (ibay) ou pour une version spécifique de PHP, ou pour toutes les versions de PHP.

Propriétés de configuration de la base de données

Clés	Rôle
php	personnalisation de /etc/php.ini	pour php54
php55	personnalisation de /opt/remi/php55/root/etc/php.ini	si aucune propriété n'est définie, les propriétés des clés php seront utilisées
php56	personnalisation de /opt/remi/php56/root/etc/php.ini
php70	personnalisation de /etc/opt/remi/php70/php.ini
php71	personnalisation def /etc/opt/remi/php71/php.ini
php72	personnalisation de /etc/opt/remi/php72/php.ini
php73	personnalisation de /etc/opt/remi/php73/php.ini
php74	personnalisation de /etc/opt/remi/php74/php.ini
php80	personnalisation de /etc/opt/remi/php80/php.ini

Chaque version de php a son propre service php-fpm en cours d'exécution, l'entrée de la base de données de configuration associée est (comme indiqué dans le tableau ci-dessus) php-fpm pour php (c'est-à-dire php54), php55-php-fpm pour php55 et ainsi de suite.

Si vous souhaitez vraiment désactiver une version de php, voici ce que vous devez faire pour php55, par d'exemple :

config setprop php55-php-fpm status disabled
signal-event webapps-update

Propriétés disponibles

Voici une liste des propriétés disponibles pour configurer php. Vous devez choisir à quel niveau vous souhaitez gérer le changement.

• Voulez-vous le changement pour l'ensemble du serveur ? -- alors choisissez probablement de le changer pour la clé php) : configuration de la base de données setprop php ...
• Voulez-vous le changement pour une version spécifique de php ? -- alors vous devriez probablement le faire avec une clé php spécifique, par exemple : configuration de base de données setprop php74 ...
• Voulez-vous appliquer le changement pour une baie spécifique ? -- c'est ce que nous vous suggérons de faire dans la plupart des cas : dbaccounts setprop mabaie ..

paramètre php	propriété de la baie	propriété de php.ini	par défaut	note
-	PHPVersion	-	74	peut varier selon la mise à jour si laissé vide
allow_url_fopen	AllowUrlFopen	AllowUrlFopen	off	risque de sécurité, maintenir à off
allow_url_include	-	-	off
auto_prepend_file	AutoPrependFile	-	enabled	/usr/share/php/auth_translation.php sauf si désactivé
disable_functions	DisableFunctions	-	system,show_source, symlink,exec,dl,shell_exec,passthru,phpinfo,escapeshellarg,escapeshellcmd
display_errors	DisplayErrors	-	off
error_log	-	-	/var/log/php/$key/error.log
error_reporting	ErrorReporting	-	E_ALL & ~E_NOTICE & ~E_DEPRECATED & ~E_STRICT
expose_php	-	ExposePHP	Off
file_upload	FileUpload	-	Off
mail.add_x_header	-	MailAddXHeader	disabled	uniquement global, pas par version php
mail.force_extra_parameters	MailForceSender	MailForceSender	root@$DomainName	ibayname@$DomainName pour les baies d'information
mail.log	-	MailLog	disabled
max_execution_time	MaxExecutionTime	MaxExecutionTime	30
max_file_uploads	-	MaxFileUpload	20
max_input_time	MaxInputTime	MaxInputTime	60
memory_limit	MemoryLimit	MemoryLimit	128M
open_basedir	PHPBaseDir	-	/home/e-smith/files/ibays/IBAYNAME/:/var/lib/php/IBAYNAME/:/usr/share/php/:/usr/share/pear/:/opt/remi/php$version/root/usr/share/pear/:/opt/remi/php$version/root/usr/share/php/
post_max_size	PostMaxSize	PostMaxSize	20M
security.limit_extensions	AllowPHTML		disabled	permet à php d'interpréter plus de types de fichiers (.php .htm .html .phar .phtml .xml)
sendmail_from	-	MailForceSender	root@$DomainName
sendmail_path	-	SendmailPath	/usr/sbin/sendmail -t -i
short_open_tag	-	ShortOpenTag	On
upload_max_filesize	UploadMaxFilesize	UploadMaxFilesize	10M

Si vous souhaitez définir une valeur spécifique pour une baie, nous montrons ici comment utiliser php80 pour la baie MYIBAY et éviter d'avoir une fonction désactivée :

db accounts setprop MYIBAY disable_functions none PHPVersion 80
signal-event webapps-update

	Note :
	il est fortement suggéré d'installer la contribution smeserver-webhosting vous permettant de définir vos valeurs php de la baie depuis le gestionnaire de serveur. Tout est disponible et cela vous évite de vous tromper dans les paramètres.

Display Error Messages

By default PHP does not display error messages on screen. Sometimes you get a blank page when executing PHP scripts. Usually some sort of error has occurred, but this error text will not be displayed as SME Server is configured to not display them. Instead the error messages are reported to the log files of the webserver and the general logfile of the server.

Try to analyze your logfiles: /var/log/httpd/error_log and /var/log/httpd/access_log and perhaps also /var/log/messages.

	Warning:
	It is strongly advised that you disable "display errors" after you have tracked and solved the problem, as the displayed error message might provide information (like filesystem layout) that only should be known to the system administrators and not to users, let alone people with bad intentions. Thus it is a potential SECURITY RISK. After debugging, disable it again.

Enable changes for all php versions

If you (for debugging purposes for instance) would like to enable it you can do it with the instructions found below:

mkdir -p /etc/e-smith/templates-custom/etc/php.ini
cp /etc/e-smith/templates/etc/php.ini/30ErrorHandling /etc/e-smith/templates-custom/etc/php.ini

After that:

sed -i /etc/e-smith/templates-custom/etc/php.ini/30ErrorHandling -e 's/display_errors.*/display_errors          = On/g' 

After that issue the following commands:

signal-event webapps-updates

Now access your page again and see what the error is.

Undo Changes

If everything works you remove the 30ErrorHandling file from the /etc/e-smith/templates-custom/etc/php.ini folder and issue the last two lines again:

signal-event webapps-update 

Enable changes for a specific ibay

Starting SME10 and smeserver-php-3.0.0-39

db accounts setprop MYIBAY DisplayErrors enabled 
signal-event webapps-update

Open basedir restriction

SME Server has a security measure in place which is called 'open basedir restriction'. This measure prevents PHP from executing or invoking other PHP scripts outside the scope of its own tree; in other words it creates a 'sandbox' or 'jail'.

Overall configuration is defined in the php.ini file but you can add an override on a per ibay basis.

Error message

The PHP open basedir restriction is usually presented to the user like this in the /var/log/messages file:

Aug 12 17:27:42 homer httpd: PHP Warning:  main(): open_basedir restriction in effect. File(/tmp/test.php) is not within the allowed path(s): (/home/e-smith/files/ibays/Primary/html/) in /home/e-smith/files/ibays/Primary/html/test.php on line 2

In general you will find this message in the log files only as by default PHP is configured to prevent the display of error messages to the end users. This can be changed as per this HowTo.

Modifying the PHPBaseDir setting for an ibay

(Please also see: these instructions on the Useful_Commands page.)
1. Open a SME Server shell as root user and document the current setting of the PHPBaseDir directive by writing down the output of the following command: db accounts getprop ibayname PHPBaseDir Be careful to write it down to the letter as we need it in the next step For the Primary ibay the ouptut of above command would normally look like this: /home/e-smith/files/ibays/Primary/html/
2. Decide on what directory you would like to add and issue the following: db accounts setprop ibayname PHPBaseDir value Replace ibayname with the name of the ibay and value with the old value for the PHPBaseDir directive you have written down and a colon (:) followed by the full path to the directory you would like to add with a tailing slash (/), e.g. db accounts setprop Primary PHPBaseDir /home/e-smith/files/ibays/Primary/html/:/opt/gallery2/ Above command would allow for invocation of scripts in the /opt/gallery2 path from the Primary ibay html folder by PHP. To allow uploading of files to via http to a ibay name wiki db accounts setprop wiki PHPBaseDir /home/e-smith/files/ibays/wiki/:/tmp/
3. After defining the new setting we need to reflect the change in the configuration file of the web server and have the web server reload it's configuration file. This is done by issuing the following command: signal-event ibay-modify ibayname Be sure to replace ibayname with the name of the ibay you have just modified.

Upload_tmp_dir

upload_tmp_dir

From SME Server V8 up to and including SME Server V9, you could sometimes have an error thrown by PHP and would then need to specify a temporary directory (e.g. upload_tmp_dir) which is not set in php.ini. see bugzilla:6650 and bugzilla:7652. Many php applications need this setting, the best-known culprits are Wordpress, Roundcube, eGroupWare, and there are others. ther symptoms observed are that you can't upload contents to the PHP application.

An easy resolution is to make a Custom Template to resolve this issue. see Uploadtmpdir

Advanced use of the php-fpm pools

For the ibays with with php-fpm.d/ibays.conf

for the ibays better option is to simply use the contrib Webhosting

For the contrib sharefolders with php-fpm.d/shares.conf

similar to ibays

For the contribs with php-fpm.d/www.conf

please read Building Your Contrib

For your custom needs with php-fpm.d/custom.conf

you can build your own pool to use in any place on your server, even in a subfolder of an ibay or in place of the regular ibay php-pool (property PHPCustomPool)

There are two ways in doing that

using db php

using the default template : /etc/e-smith/templates/etc/php-fpm.d/custom.conf , you can set your own pool doing:

db php set MYPOOLNAME pool Version 81 status enabled

here are the accepted supplementary properties, as always missing or empty means using default.

property	default	values	information
status	enabled	enabled,disabled
Version			php version to use eg 80 for php 8.0
MemoryLimit	128M
MaxExecutionTime	30
MaxInputTime	60
AllowUrlFopen	off
MaxChildren	15
PostMaxSize	10M
UploadMaxFilesize	10M
FileUpload	enabled
BaseDir
DisabledFunctions	system,show_source,symlink,exec,dl,shell_exec,passthru,phpinfo,escapeshellarg,escapeshellcmd
User	www
Group	www
DisplayErrors	disabled
LogErrors	disabled
MaxChildren	15
AutoPrependFile	enabled		will use the autoprepend file
MailForceSender	php\@$DomainName

you will then need two httpd.conf custom template fragment to use your pool. You will need to change MYPOOL to what you want

mkdir -p  /etc/e-smith/templates-custom/etc/httpd/conf/httpd.conf/
vim /etc/e-smith/templates-custom/etc/httpd/conf/httpd.conf/98mypoolusage

<Directory /home/e-smith/files/ibays/test/html/mysubfolder>
    SSLRequireSSL
    Options None
    Options +Indexes
    Options +FollowSymLinks
    DirectoryIndex index.php index.shtml index.htm index.html
    <FilesMatch \.php$>
         SetHandler "proxy:unix:/var/run/php-fpm/php80-MYPOOLNAME.sock|fcgi://localhost"
    </FilesMatch>
    AllowOverride All
    order deny,allow
    deny from all
    allow from all
</Directory>

then just do signal-event webapps-update

using a templates-custom

You can write your own fragment in /etc/e-smith/templates-custom/etc/php-fpm.d/custom.conf/ e.g. /etc/e-smith/templates-custom/etc/php-fpm.d/custom.conf/15mypool

You will also need to write a httpd fragment similarly to what shown just above.

Here is an example if you want a custom pool for your ibay, in /etc/e-smith/templates-custom/etc/php-fpm.d/ibays.conf/15MYIBAY

{

use esmith::AccountsDB;
use esmith::php;
my $a = esmith::AccountsDB->open_ro || die "Couldn't open the accounts database";
my $ibay = $a->get("MYIBAY");
  my $version             = PhpFpmVersionToUse($ibay);
  my $dynamic             = $ibay->prop('CgiBin') || 'disabled';
  my $custom              = $ibay->prop('CustomPool') || undef;
  next unless ($dynamic eq 'enabled' && $version eq $PHP_VERSION && $custom);
  my $key                 = $ibay->key;
  my $name                = lc $key;
  my $pool_name           = 'php' . $version . '-' . $name;
  $OUT .=<<"_EOF" if ($version eq $PHP_VERSION);

[$pool_name]
user = www
group = www
listen.owner = root
listen.group = www
listen.mode = 0660
listen = /var/run/php-fpm/$pool_name.sock
;
;
;put whatever you need there
;
;
_EOF
}

You have then to force the ibay to use it by doing :

db accounts MYIBAY setprop CustomPool enabled

This will prevent the generation of the default ibay pool in ibays.conf , and let you use /var/run/php-fpm/php$version-$name.sock socket from your template-custom... or from the db php using the same key as the name of the ibay.

Installation of composer

This is made tricky as we do not have the PHP CLI configured.

But we can install it as follows with command line arguments. This is using php74

Download:

php74 -d allow_url_fopen=on -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"

Install:

php74 -d allow_url_fopen=on  ./composer-setup.php 

Bugs

Please raise bugs under the SME-Server 10.X section in Bugzilla and select the smeserver-php component or use this link .

Below is an overview of the current issues for this package:

"No open bugs found."

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