1 files changed, 5 insertions, 0 deletions
diff --git a/lib/composer/autoload.php b/lib/composer/autoload.php
index 6de0160c0b5..a3d144b1777 100644
--- a/lib/composer/autoload.php
+++ b/lib/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInit53792487c5a8370acc0b06b1a864ff4c::getLoader();