Place the PHP version into a variable (#2307)

Also
- trims a few trailing whitespace characters
- gitignores VS code workspace

setup/functions.sh

@@ -4,6 +4,8 @@
 # -o pipefail: don't ignore errors in the non-last command in a pipeline
 set -euo pipefail
 
+# This global variable pinpoints the PHP version for the whole MiaB app
+# Upgrade it only with care and tests. Nextcloud versions depend on it.
 PHP_VER=8.0
 
 function hide_output {

setup/web.sh

@@ -124,7 +124,7 @@ chmod a+r /var/lib/mailinabox/mozilla-autoconfig.xml
 
 # Create a generic mta-sts.txt file which is exposed via the
 # nginx configuration at /.well-known/mta-sts.txt
-# more documentation is available on: 
+# more documentation is available on:
 # https://www.uriports.com/blog/mta-sts-explained/
 # default mode is "enforce". In /etc/mailinabox.conf change
 # "MTA_STS_MODE=testing" which means "Messages will be delivered

setup/zpush.sh

@@ -41,7 +41,7 @@ if [ $needs_update == 1 ]; then
 	mv /tmp/z-push/*/src /usr/local/lib/z-push
 	rm -rf /tmp/z-push.zip /tmp/z-push
 
-	# Create admin and top scripts with PHP_VER  
+	# Create admin and top scripts with PHP_VER
 	rm -f /usr/sbin/z-push-{admin,top}
     echo '#!/bin/bash' > /usr/sbin/z-push-admin
     echo php$PHP_VER /usr/local/lib/z-push/z-push-admin.php '"$@"' >> /usr/sbin/z-push-admin
@@ -49,7 +49,7 @@ if [ $needs_update == 1 ]; then
     echo '#!/bin/bash' > /usr/sbin/z-push-top
     echo php$PHP_VER /usr/local/lib/z-push/z-push-top.php '"$@"' >> /usr/sbin/z-push-top
     chmod 755 /usr/sbin/z-push-top
-	
+
 	echo $VERSION > /usr/local/lib/z-push/version
 fi