ext/standard: Fix boolean keys in array_combine()

NEWS

@@ -294,6 +294,7 @@ PHP                                                                        NEWS
     (Nicolas Grekas)
   . Fixed convert.quoted-printable-decode decoding lowercase hex digits to
     the wrong byte. (Ilia Alshanetsky)
+  . Fixed boolean key handling in array_combine(). (arshidkv12)
 
 - Tidy:
   . Fixed a use-after-free when a tidyNode is used after its document is

ext/standard/array.c

@@ -7187,6 +7187,11 @@ PHP_FUNCTION(array_combine)
 				if (Z_TYPE_P(entry_keys) == IS_LONG) {
 					entry_values = zend_hash_index_update(Z_ARRVAL_P(return_value),
 						Z_LVAL_P(entry_keys), entry_values);
+				} else if (Z_TYPE_P(entry_keys) == IS_FALSE || Z_TYPE_P(entry_keys) == IS_TRUE) {
+					entry_values = zend_hash_index_update(Z_ARRVAL_P(return_value),
+						Z_TYPE_P(entry_keys) == IS_TRUE ? 1 : 0,
+						entry_values
+					);
 				} else {
 					zend_string *tmp_key;
 					zend_string *key = zval_get_tmp_string(entry_keys, &tmp_key);

ext/standard/tests/array/array_combine_boolean_keys.phpt

@@ -0,0 +1,39 @@
+--TEST--
+array_combine() with boolean keys compared to direct array keys
+--FILE--
+<?php
+
+echo "Direct array keys:\n";
+var_dump([true => 'true', false => 'false']);
+
+echo "\narray_combine:\n";
+var_dump(array_combine([true, false], ['true', 'false']));
+
+echo "\nExplicit integer keys:\n";
+var_dump(array_combine([1, 0], ['true', 'false']));
+
+?>
+--EXPECT--
+Direct array keys:
+array(2) {
+  [1]=>
+  string(4) "true"
+  [0]=>
+  string(5) "false"
+}
+
+array_combine:
+array(2) {
+  [1]=>
+  string(4) "true"
+  [0]=>
+  string(5) "false"
+}
+
+Explicit integer keys:
+array(2) {
+  [1]=>
+  string(4) "true"
+  [0]=>
+  string(5) "false"
+}