change default NumberGenerator to XorShift128Plus -> Secure

Author: zeriyoshi

ext/random/random.c

@@ -1235,21 +1235,11 @@ PHP_METHOD(Random_Randomizer, __construct)
 
 	/* Create default RNG instance */
 	if (!generator_object) {
-		zval zseed;
-		zend_long seed = 0;
-
-		if (php_random_bytes_throw(&seed, sizeof(zend_long) == FAILURE)) {
-			RETURN_THROWS();
-		}
-
-		ZVAL_LONG(&zseed, seed);
-
-		generator_object = php_random_numbergenerator_xorshift128plus_new(random_ce_Random_NumberGenerator_XorShift128Plus);
-		zend_call_known_instance_method_with_1_params(
+		generator_object = php_random_numbergenerator_secure_new(random_ce_Random_NumberGenerator_Secure);
+		zend_call_known_instance_method_with_0_params(
 			random_ce_Random_NumberGenerator_XorShift128Plus->constructor,
 			generator_object,
-			NULL,
-			&zseed
+			NULL
 		);
 
 		/* No need self-refcount */

ext/random/tests/randomizer/readonly.phpt

@@ -3,7 +3,9 @@ Random: Randomizer: readonly numbergenerator
 --FILE--
 <?php
 
-$one = new \Random\Randomizer();
+$one = new \Random\Randomizer(
+    new \Random\NumberGenerator\XorShift128Plus(1234)
+);
 
 $one_ng_clone = clone $one->numberGenerator;
 if ($one->numberGenerator->generate() !== $one_ng_clone->generate()) {