Skip test while zend mm is disabled

ext/oci8/tests/pecl_bug10194.phpt

@@ -5,6 +5,9 @@ PECL Bug #10194 (segfault in Instant Client when memory_limit is reached inside
 $target_dbs = array('oracledb' => true, 'timesten' => false);  // test runs on these DBs
 require(dirname(__FILE__).'/skipif.inc');
 if (getenv('SKIP_SLOW_TESTS')) die('skip slow tests excluded by request');
+if (getenv("USE_ZEND_ALLOC") === "0") {
+    die("skip Zend MM disabled");
+}
 ?> 
 --INI--
 memory_limit=10M

ext/oci8/tests/pecl_bug10194_blob_64.phpt

@@ -6,6 +6,9 @@ $target_dbs = array('oracledb' => true, 'timesten' => false);  // test runs on t
 require(dirname(__FILE__).'/skipif.inc');
 if (getenv('SKIP_SLOW_TESTS')) die('skip slow tests excluded by request');
 if (PHP_INT_SIZE != 8) die("skip this test is for 64bit platforms only");
+if (getenv("USE_ZEND_ALLOC") === "0") {
+    die("skip Zend MM disabled");
+}
 ?>
 --INI--
 memory_limit=6M

tests/lang/bug45392.phpt

@@ -2,6 +2,11 @@
 Bug #45392 (ob_start()/ob_end_clean() and memory_limit)
 --INI--
 display_errors=stderr
+--SKIPIF--
+<?php
+if (getenv("USE_ZEND_ALLOC") === "0") {
+    die("skip Zend MM disabled");
+} 
 --FILE--
 <?php
 echo __LINE__ . "\n";