2 files changed, 48 insertions, 0 deletions
diff --git a/ext/standard/tests/general_functions/bug52138.data b/ext/standard/tests/general_functions/bug52138.data
new file mode 100644
index 0000000000..4ce82e0973
--- /dev/null
+++ b/ext/standard/tests/general_functions/bug52138.data
@@ -0,0 +1,11 @@
+[MYCONST]
+MYCONST = MYCONST
+
+[M_PI]
+FOO=M_PI " test"
+
+[foo::bar]
+A=1
+B=A "A" A
+
+[MYCONST M_PI]
diff --git a/ext/standard/tests/general_functions/bug52138.phpt b/ext/standard/tests/general_functions/bug52138.phpt
new file mode 100644
index 0000000000..d4f38735ab
--- /dev/null
+++ b/ext/standard/tests/general_functions/bug52138.phpt
@@ -0,0 +1,37 @@
+--TEST--
+Bug #52138 (Constants are parsed into the ini file for section names)
+--FILE--
+<?php
+
+define('MYCONST', 1);
+define('A', 'B');
+
+$ini_file = dirname(__FILE__)."/bug52138.data";
+
+$ret = parse_ini_file($ini_file, true);
+var_dump($ret);
+
+?>
+--EXPECTF--
+array(4) {
+  ["MYCONST"]=>
+  array(1) {
+    ["MYCONST"]=>
+    string(1) "1"
+  }
+  ["M_PI"]=>
+  array(1) {
+    ["FOO"]=>
+    string(%d) "3.%d test"
+  }
+  ["foo::bar"]=>
+  array(2) {
+    ["A"]=>
+    string(1) "1"
+    ["B"]=>
+    string(3) "BAB"
+  }
+  ["MYCONST M_PI"]=>
+  array(0) {
+  }
+}