php 数组设置为空,PHP数组设置空值
如果沒有數(shù)據(jù)存在，如何將數(shù)組值設(shè)置為null？PHP數(shù)組設(shè)置空值
以下是我的PHP陣列和我JSON編碼 -
{
"title":"Impalz-Marketing",
"type":"Business Details",
"version":"1.0",
"login":[ ],
"business":{
"1":{
"details":{ },
"messages":[ ],
"offers":[ ],
"events":[ ],
"milestone":[ ],
"products":[ ],
"brand_exp":[ ],
"reviews":[ ],
"agg_reviews":{ }
},
"168":{
"details":{ },
"messages":[ ],
"products":[ ]
}
}
}
行數(shù)是在商業(yè)不均勻。如果不存在行，如何將數(shù)據(jù)設(shè)置為null？
$data = array(
'title' => 'Impalz-Marketing',
'type' => 'Business Details',
'version' => '1.0',
'login' => $login_array,
'business' => $business_details_array
);
我已經(jīng)試過這樣：
$business_details_array = array();
while($row = mysql_fetch_assoc($biz_list))
{
$business_details_array[$row['id']]['details'] = $row;
}
while($row = mysql_fetch_assoc($biz_milestone))
{
if(!empty($row['id'])){
$temp= explode(',', $row['path']);
if(count($temp) > 1) {
$row['path']= $temp;
}
$business_details_array[$row['business_id']]['milestone'][] = $row;
}else{
$business_details_array[]['milestone'][] = null; // since no data exist their wont be any business_id
}
}
我想是這樣的 -
{
"title":"Impalz-Marketing",
"type":"Business Details",
"version":"1.0",
"login":[ ],
"business":{
"1":{
"details":{ },
"messages":[ ],
"offers":[ ],
"events":[ ],
"milestone":[ ],
"products":[ ],
"brand_exp":[ ],
"reviews":[ ],
"agg_reviews":{ }
},
"168":{
"details":{ },
"messages":[ ],
"offers": "null",
"events": "null",
"milestone": "null",
"products":[ ],
"brand_exp": "null",
"reviews": "null",
"agg_reviews": "null"
}
}
}
+0
你可以發(fā)布更多的代碼來創(chuàng)建數(shù)組。看起來你可能需要在while循環(huán)之前加上= null位。您應(yīng)該將商業(yè)標(biāo)識存儲在某個(gè)地方。 $ business_details_array [$ thisBusinessId] ['milestone'] [] = null; –
+0
我已經(jīng)添加了代碼，在這個(gè)代碼中我使用'business_id'獲取所有業(yè)務(wù)列表，并且根據(jù)它進(jìn)一步過濾詳細(xì)信息。 –
總結(jié)
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