Make sure we always pass a string to strtoupper

3 years ago · bbd87934e9
parent e1570798cd
commit bbd87934e9
1 changed files with 1 additions and 1 deletions
--- a/src/Composer/Util/Platform.php
+++ b/src/Composer/Util/Platform.php
@ -98,7 +98,7 @@ class Platform

        // detect msysgit/mingw and assume this is a tty because detection
        // does not work correctly, see https://github.com/composer/composer/issues/9690
-        if (in_array(strtoupper(getenv('MSYSTEM')), array('MINGW32', 'MINGW64'), true)) {
+        if (in_array(strtoupper(getenv('MSYSTEM') ?: ''), array('MINGW32', 'MINGW64'), true)) {
            return true;
        }