diff --git a/HISTORY b/HISTORY
index 0622599..2ff1c94 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,4 +1,8 @@
 
+Version 1.55  2022-01-09
+  * fastcommon php extension adapt to php 8
+  * function fast_mblock_batch_alloc changed
+
 Version 1.54  2021-12-23
   * fast_allocator.[hc]: correct reclaim_interval logic
   * shared_func.[hc]: add functions getFileContentEx1 and getFileContent1
diff --git a/src/fast_mblock.c b/src/fast_mblock.c
index a519056..8fc0f50 100644
--- a/src/fast_mblock.c
+++ b/src/fast_mblock.c
@@ -838,10 +838,9 @@ static inline void batch_free(struct fast_mblock_man *mblock,
     }
 }
 
-struct fast_mblock_node *fast_mblock_batch_alloc(
-        struct fast_mblock_man *mblock, const int count)
+int fast_mblock_batch_alloc(struct fast_mblock_man *mblock,
+        const int count, struct fast_mblock_chain *chain)
 {
-    struct fast_mblock_chain chain;
 	struct fast_mblock_node *pNode;
     int i;
 	int result;
@@ -853,28 +852,31 @@ struct fast_mblock_node *fast_mblock_batch_alloc(
 			"call pthread_mutex_lock fail, "
 			"errno: %d, error info: %s",
 			__LINE__, result, STRERROR(result));
-		return NULL;
+		return result;
 	}
 
-    if ((chain.head=alloc_node(mblock)) != NULL)
-    {
-        chain.tail = chain.head;
-        for (i=1; i<count; i++)
-        {
-            if ((pNode=alloc_node(mblock)) == NULL)
-            {
+    if ((chain->head=alloc_node(mblock)) != NULL) {
+        chain->tail = chain->head;
+        for (i=1; i<count; i++) {
+            if ((pNode=alloc_node(mblock)) == NULL) {
                 break;
             }
 
-            chain.tail->next = pNode;
-            chain.tail = pNode;
+            chain->tail->next = pNode;
+            chain->tail = pNode;
         }
-        chain.tail->next = NULL;
+        chain->tail->next = NULL;
 
-        if (i != count) {  //fail
-            batch_free(mblock, &chain);
-            chain.head = NULL;
+        if (i == count) {
+            result = 0;
+        } else { //fail
+            batch_free(mblock, chain);
+            chain->head = chain->tail = NULL;
+            result = ENOMEM;
         }
+    } else {
+        chain->head = chain->tail = NULL;
+        result = ENOMEM;
     }
 
 	if (mblock->need_lock && (result=pthread_mutex_unlock(
@@ -886,7 +888,7 @@ struct fast_mblock_node *fast_mblock_batch_alloc(
                 __LINE__, result, STRERROR(result));
     }
 
-	return chain.head;
+	return result;
 }
 
 int fast_mblock_batch_free(struct fast_mblock_man *mblock,
diff --git a/src/fast_mblock.h b/src/fast_mblock.h
index 9428fb8..bc79bc9 100644
--- a/src/fast_mblock.h
+++ b/src/fast_mblock.h
@@ -255,6 +255,17 @@ return 0 for success, return none zero if fail
 int fast_mblock_free(struct fast_mblock_man *mblock,
 		     struct fast_mblock_node *pNode);
 
+/**
+batch alloc nodes from the mblock
+parameters:
+	mblock: the mblock pointer
+    count: alloc count
+    chain: return the mblock node chain
+return 0 for success, return none zero if fail
+*/
+int fast_mblock_batch_alloc(struct fast_mblock_man *mblock,
+        const int count, struct fast_mblock_chain *chain);
+
 /**
 batch alloc nodes from the mblock
 parameters:
@@ -262,8 +273,16 @@ parameters:
     count: alloc count
 return the alloced node head, return NULL if fail
 */
-struct fast_mblock_node *fast_mblock_batch_alloc(
-        struct fast_mblock_man *mblock, const int count);
+static inline struct fast_mblock_node *fast_mblock_batch_alloc1(
+        struct fast_mblock_man *mblock, const int count)
+{
+    struct fast_mblock_chain chain;
+    if (fast_mblock_batch_alloc(mblock, count, &chain) == 0) {
+        return chain.head;
+    } else {
+        return NULL;
+    }
+}
 
 /**
 batch free nodes
diff --git a/src/fc_queue.c b/src/fc_queue.c
index a5a307d..74d7837 100644
--- a/src/fc_queue.c
+++ b/src/fc_queue.c
@@ -211,7 +211,7 @@ int fc_queue_alloc_chain(struct fc_queue *queue, struct fast_mblock_man
 {
     struct fast_mblock_node *node;
 
-    if ((node=fast_mblock_batch_alloc(mblock, count)) == NULL) {
+    if ((node=fast_mblock_batch_alloc1(mblock, count)) == NULL) {
         chain->head = chain->tail = NULL;
         return ENOMEM;
     }