带做网站,上海房产交易网站,施工建设集团网站,北京随喜设计网站如果没有数据存在#xff0c;如何将数组值设置为null#xff1f;PHP数组设置空值以下是我的PHP阵列和我JSON编码 -{title:Impalz-Marketing,type:Business Details,version:1.0,login:…如果没有数据存在如何将数组值设置为nullPHP数组设置空值以下是我的PHP阵列和我JSON编码 -{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:[ ]}}}行数是在商业不均匀。如果不存在行如何将数据设置为null$data array(title Impalz-Marketing,type Business Details,version 1.0,login $login_array,business $business_details_array);我已经试过这样$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}}我想是这样的 -{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你可以发布更多的代码来创建数组。看起来你可能需要在while循环之前加上 null位。您应该将商业标识存储在某个地方。 $ business_details_array [$ thisBusinessId] [milestone] [] null; –0我已经添加了代码在这个代码中我使用business_id获取所有业务列表并且根据它进一步过滤详细信息。 –