diff --git a/get-configurable-aio-variables.sh b/get-configurable-aio-variables.sh
deleted file mode 100755
index 44536bd3..00000000
--- a/get-configurable-aio-variables.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/usr/bin/env bash
-
-awk '/^    public [^f][^u][^n]/ { sub(/\$/, "", $3); print $3 }' php/src/Data/ConfigurationManager.php | sort
diff --git a/php/src/Data/ConfigurationManager.php b/php/src/Data/ConfigurationManager.php
index 2863d6e8..2fb0a413 100644
--- a/php/src/Data/ConfigurationManager.php
+++ b/php/src/Data/ConfigurationManager.php
@@ -978,19 +978,10 @@ class ConfigurationManager
         }
         $this->setMultiple(function(ConfigurationManager $confManager) use ($input) {
             foreach ($input as $variable) {
-                if (!is_string($variable) || !str_contains($variable, '=')) {
-                    error_log("Invalid input: '$variable' is not a string or does not contain an equal sign ('=')");
-                    continue;
-                }
                 $keyWithValue = $confManager->replaceEnvPlaceholders($variable);
-                // Pad the result with nulls so psalm is happy (and we don't risk to run into warnings in case
-                // the check for an equal sign from above gets changed).
-                [$key, $value] = explode('=', $keyWithValue, 2) + [null, null];
-                if ($value === null) {
-                    error_log("Invalid input: '$keyWithValue' has no value after the equal sign");
-                } else if (!property_exists($confManager, $key)) {
-                    error_log("Error: '$key' is not a valid configuration key (in '$keyWithValue')");
-                } else {
+                [$key, $value] = explode('=', $keyWithValue, 2);
+                // Set if there's an attribute corresponding to the key.
+                if (isset($key, $confManager->$key)) {
                     $confManager->$key = $value;
                 }
             }