diff --git a/lib/class.ISPConfig.inc.php b/lib/class.ISPConfig.inc.php
index b3a0bfff45018aa3e440bc685084fcfe51782993..948130dcb7aa4a8a73ea9d06ad9790f7f23246b1 100644
--- a/lib/class.ISPConfig.inc.php
+++ b/lib/class.ISPConfig.inc.php
@@ -174,10 +174,30 @@ class ISPConfig {
 	}
 
 	public static function wantsPHP() {
+		// If a new version is added, the getApacheModulesToDisable function should be updated to disable the latest version (this part could be improved)
+		$available_php_versions = array(
+			'5.6',
+			'7.0',
+			'7.1',
+			'7.2',
+			'7.3',
+			'7.4',
+			'8.0'
+		);
 		if(isset($_GET['use-php']) && $_GET['use-php']) {
-			return $_GET['use-php'];
+			if ($_GET['use-php'] === 'system') {
+				return $_GET['use-php'];
+			} else {
+				$use_php = explode(',',$_GET['use-php']);				
+				$php_versions = array_intersect($use_php, $available_php_versions);
+				if(!empty($php_versions)) {
+					return $php_versions;
+				} else {
+					return false;
+				}				
+			}
 		} else {
-			return false;
+			return $available_php_versions;
 		}
 	}
 
@@ -224,9 +244,9 @@ Possible arguments are:
 	--use-nginx		->Use nginx webserver instead of apache2
 	--use-amavis	->Use amavis instead of rspamd for mail filtering
 	--use-unbound	->Use unbound instead of bind9 for local resolving. Only allowed if --no-dns is set.
-	--use-php		->Use specific PHP version instead of installing multiple PHP, e.g. --use-php=7.3 (5.6, 7.0, 7.1, 7.2 and 7.3 available).
+	--use-php		->Use specific PHP versions, comma separated, instead of installing multiple PHP, e.g. --use-php=7.4,8.0 (5.6, 7.0, 7.1, 7.2, 7.3, 7.4 and 8.0 available).
 					->--use-php=system disables the sury repository and just installs the system\'s default PHP version.
-					->CURRENTLY ONLY EITHER --use-php=system OR OMITTING THE ARGUMENT (use all versions) IS SUPPORTED!
+					->ommiting the argument (use all versions) 
 	--use-ftp-ports ->This option sets the passive port range for pure-ftpd. You have to specify the port range separated by hyphen, e. g. --use-ftp-ports=40110-40210.
 					->If not provided the passive port range will not be configured.
 	--no-web		->Do not use ISPConfig on this server to manage webserver setting and don\'t install nginx/apache or pureftpd. This will also prevent installing an ISPConfig UI and implies --no-roundcube as well as --no-pma
@@ -279,7 +299,7 @@ Possible arguments are:
 		} elseif(isset($_GET['lang']) && !in_array($_GET['lang'], array('de', 'en'), true)) {
 			self::printHelp();
 			exit;
-		} elseif(isset($_GET['use-php']) && $_GET['use-php'] !== 'system') {//!in_array($_GET['use-php'], array('5.6', '7.0', '7.1', '7.2', '7.3', 'system'), true)) {
+		} elseif(isset($_GET['use-php']) && !self::wantsPHP()) {
 			self::printHelp();
 			exit;
 		} elseif(isset($_GET['use-ftp-ports']) && (!preg_match('/^([1-9][0-9]+)-([1-9][0-9]+)$/', $_GET['use-ftp-ports'], $pmatch) || intval($pmatch[1]) >= intval($pmatch[2]))) {
diff --git a/lib/os/class.ISPConfigDebianOS.inc.php b/lib/os/class.ISPConfigDebianOS.inc.php
index ccaa6e97b3eb3119c4727f20b43ae37903c99b92..0a707ede91541213c1cc899ef5a88d7d6e2b4c0f 100644
--- a/lib/os/class.ISPConfigDebianOS.inc.php
+++ b/lib/os/class.ISPConfigDebianOS.inc.php
@@ -808,16 +808,8 @@ mailman-unsubscribe:  "|/var/lib/mailman/mail/mailman unsubscribe mailman"';
 		if(ISPConfig::wantsPHP() === 'system') {
 			$php_versions = array($this->getSystemPHPVersion());
 		} else {
-			// If a new version is added, the getApacheModulesToDisable function should be updated to disable the latest version (this part could be improved)
-			$php_versions = array(
-				'5.6',
-				'7.0',
-				'7.1',
-				'7.2',
-				'7.3',
-				'7.4',
-				'8.0'
-			);
+			//ISPConfig::run() validations prevent sending here null values
+			$php_versions = ISPConfig::wantsPHP();
 		}
 
 		$php_modules = array(