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hyhproject/mobile2/common/function.php

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+<?php
+use think\Db;
+/**
+ * ============================================================================
+ */
+/**
+ * 获取购物车数量
+ */
+function WSTCartNum(){
+	$userId = session('WST_USER.userId');
+	$cartNum = Db::name('carts')->where(['userId'=>$userId])->field('cartId')->select();
+	$count = count($cartNum);
+	return $count;
+}
+