Fix docs, comments and enhance example

Author: baschny

example-app/.env.example

@@ -47,10 +47,11 @@ pm.max_children = 5
 # PHP settings by env vars
 # -----------------------------------------
 
-# Example of setting php.ini settings
+# Example of setting php.ini settings, UPPER CASED
 PHPINI__SESSION__SAVE_HANDLER=redis
+PHPINI__SESSION__SAVE_PATH='"tcp://redis:6379?persistent=1&weight=1&database=10&prefix=PHPSESSID:"'
 PHPINI__REDIS__SESSION__LOCKING_ENABLED=1
 
-# Example of setting PHP-FPM settings
-PHPFPM__REQUEST_terminate_timeout=30s
+# Example of setting PHP-FPM settings, lower cased also possible
+PHPFPM__request_terminate_timeout=30s
 PHPFPM__pm__max_children=15

files/entrypoint-extras.sh

@@ -103,10 +103,9 @@ if env | grep -q '^PHPINI__'; then
     # Transform key: PHPINI__this__setting => this.setting
     key=${name#PHPINI__}
     key=$(printf '%s' "$key" | sed 's/__/./g')
-    # Lowercase in POSIX sh (dash/busybox) without bash-specific substitution
     key=$(printf '%s' "$key" | tr '[:upper:]' '[:lower:]')
     # Append as "key = value" (value is written as-is; quote in ENV if needed)
-    printf '* setting in php.ini: %s = %s\n' "$key" "$value"
+    printf '* Setting in php.ini: %s = %s\n' "$key" "$value"
     printf '%s = %s\n' "$key" "$value" >> "$CUSTOM_INI"
     # Unset them, not relevant to the running containers
     unset "$name"