diff --git a/backend/app/service/php_extensions.go b/backend/app/service/php_extensions.go
index 665d71857..adecc15e5 100644
--- a/backend/app/service/php_extensions.go
+++ b/backend/app/service/php_extensions.go
@@ -62,7 +62,7 @@ func (p PHPExtensionsService) List() ([]response.PHPExtensionsDTO, error) {
 
 func (p PHPExtensionsService) Create(req request.PHPExtensionsCreate) error {
 	exist, _ := phpExtensionsRepo.GetFirst(commonRepo.WithByName(req.Name))
-	if exist.ID == 0 {
+	if exist.ID > 0 {
 		return buserr.New(constant.ErrNameIsExist)
 	}
 	extension := model.PHPExtensions{
diff --git a/frontend/src/global/form-rules.ts b/frontend/src/global/form-rules.ts
index cae019b0d..3c11e7c1d 100644
--- a/frontend/src/global/form-rules.ts
+++ b/frontend/src/global/form-rules.ts
@@ -478,7 +478,7 @@ const checkPHPExtensions = (rule, value, callback) => {
     if (value === '' || typeof value === 'undefined' || value == null) {
         callback(new Error(i18n.global.t('commons.rule.phpExtension')));
     } else {
-        const reg = /^[a-z0-9,_]{3,300}$/;
+        const reg = /^[a-z0-9,_]{1,300}$/;
         if (!reg.test(value)) {
             callback(new Error(i18n.global.t('commons.rule.phpExtension')));
         } else {
diff --git a/frontend/src/views/website/runtime/php/extensions/operate/index.vue b/frontend/src/views/website/runtime/php/extensions/operate/index.vue
index b451fe613..6906caecb 100644
--- a/frontend/src/views/website/runtime/php/extensions/operate/index.vue
+++ b/frontend/src/views/website/runtime/php/extensions/operate/index.vue
@@ -54,7 +54,7 @@ const loading = ref(false);
 const updateID = ref(0);
 const extensionsForm = ref<FormInstance>();
 const rules = ref({
-    name: [Rules.requiredInput],
+    name: [Rules.requiredInput, Rules.name],
     extensions: [Rules.requiredInput, Rules.phpExtensions],
 });
 const em = defineEmits(['close']);