另外一种拼接数据方法，利用数组的传引用作的。

<?php
/**
 * total用来作分页，在model里写的
 * yaf中全部的多条查询都至少是二维的数组，为了方便，我定义成三维的
 * 第二个和第三个数组都是以user_id为主键，没有自增id
 * 假设，分别查了3个表，获得以下三个数组
 * foreach遍历拼接数据开始
 */


//假设从控制器里查到三个数组，分别以下。
$infoArray = array(
	'total' => 3,
	'rows' => array(
		0 => array(
			'id' => 1,
			'user_id' => 1001,
			'name' => '张三丰',
		),
		1 => array(
			'id' => 2,
			'user_id' => 1002,
			'name' => '李司机',
		),
		2 => array(
			'id' => 3,
			'user_id' => 1003,
			'name' => '王武功',
		),
	),
);
$arrayAge = array(
	'total' => 3,
	'rows' => array(
		0 => array(
			'user_id' => 1001,
			'age' => 21,
			'phone' => '13900000001',
		),
		1 => array(
			'user_id' => 1002,
			'age' => 23,
			'phone' => '13900000002',
		),
		2 => array(
			'user_id' => 1003,
			'age' => 18,
			'phone' => '13900000003',
		),
	),
);
$arrayPhone = array(
	'total' => 3,
	'rows' => array(
		0 => array(
			'user_id' => 1001,
			'phone' => '13900000001',
		),
		1 => array(
			'user_id' => 1002,
			'phone' => '13900000002',
		),
		2 => array(
			'user_id' => 1003,
			'phone' => '13900000003',
		),
	),
);


//这个方法通常写在model里，
function formatArray($infoArray, $arrayAge, $arrayPhone)
{
	if(!empty($arrayAge))
	{
		$arrayAgeArr = array();
		foreach((array) $arrayAge['rows'] as $val )
		{
			$arrayAgeArr[$val['user_id']]['age'] = $val['age'];
		}
	}
	if(!empty($arrayPhone))
	{
		$arrayPhoneArr = array();
		foreach((array) $arrayPhone['rows'] as $val )
		{
			$arrayPhoneArr[$val['user_id']]['phone'] = $val['phone'];
		}
	}
	foreach($infoArray['rows'] as &$val)
	{
		if($arrayPhoneArr)
		{
			$val['phone'] = $arrayPhoneArr[$val['user_id']]['phone'];
		}
		if($arrayAgeArr)
		{
			$val['age'] = $arrayAgeArr[$val['user_id']]['age'];
		}
	}
	return $infoArray;
}
var_dump(formatArray($infoArray, $arrayAge, $arrayPhone));die();


/**
 * 举例：$arrayPhoneArr[$val['user_id']]['phone'] = $val['phone'];
 * 整体来讲，等号左边，是将$arrayPhoneArr里的user_id做为键名，
 * phone是自定义的第二维数组键名，
 * 等号右边，是值。
 * foreach($infoArray['rows'] as &$val)
 * &符号是传的数组的引用地址，而不是数组的值。
 */

补充：

$order_info = $database_order->field(true)->where($order_condition)->select();

foreach($order_info as $key => $val){
    		$storeId[$val['store_id']] = $val['store_id'];
    		$merId[$val['mer_id']] = $val['mer_id'];
    		$orderId[$val['order_id']] = $val['order_id'];
    	}

$store_where['store_id'] = array('in', $storeId);
    	$store_info = $database_store->field(true)->where($store_where)->select();

$now_order = $orderObj->formatArray($order_info, $store_info, $merchant_info, $deliverSupplyInfo);

补充：不能直接查询整个表中的数据，那样得不偿失。

应该像补充的，有范围的查询，再去整合数据。用in是比较好的选择。