小程序消息{"errcode":47003,"errmsg":"argument invalid! hint: [03tnPa02252066] data.name4.value invalid"}

小程序訂閱消息報錯：
請求的參數：
解決方案：
是因爲name4 的value的值長度超過20個字符了，需要截取一下

$send_mini_program_message = array(
            "character_string1" => ["value" => (string)998], //訂單號
            "amount2" => ["value" => 0 . '元'],//支付金額
            "thing3" => ["value" => mb_substr($receiving_address, 0, 20, 'utf-8')],//收貨地址 $receiving_address
            "name4" => ["value" => mb_substr($goods_info['product_name'], 0, 10, 'utf-8')],//商品名稱  $goods_info['product_name']
        );

再次發送顯示，表示成功發送

{“errcode”:0,“errmsg”:“ok”}