我需要使用PHP和MySQL按照相同的键值以某种格式对json数组值进行排序。我在下面解释我的代码。
require_once('dbconn.php');
$con = dbConnect();
$group='BA_2017_ANT_ODDSEM';
$query='select egm.exam_group_name, ezm.zone_name, ecm.exam_centre_name,
im.institute_name
from institute_to_centre_mapping icm
join institute_master im on icm.institute_code=im.institute_code
join exam_zone_master ezm on icm.zone_code= ezm.zone_code
join exam_centre_master ecm on icm.exam_centre_code= ecm.exam_centre_code
join exam_group_master egm on icm.exam_group_code=egm.exam_group_code
where icm.exam_group_code="'.$group.'"
and icm.record_status=1
order by ezm.zone_name,ecm.exam_centre_name, im.institute_name';
$rResult = mysqli_query($con,$query);
while ($row=mysqli_fetch_array($rResult)) {
$output[]=$row;
}
echo json_encode($output);
上面的结果如下。
[{ "0":"BA 2017-18_ANT_ODD",
"exam_group_name":"BA 2017-18_ANT_ODD",
"1":"EASTZONE",
"zone_name":"EASTZONE",
"2":"Berhampur",
"exam_centre_name":"Berhampur",
"3":"BALIMELA COLLEGE OF SCIENCE & TECHNOLOGY",
"institute_name":"BALIMELA COLLEGE OF SCIENCE & TECHNOLOGY"
},{
"0":"BA 2017-18_ANT_ODD",
"exam_group_name":"BA 2017-18_ANT_ODD",
"1":"EASTZONE",
"zone_name":"EASTZONE",
"2":"Berhampur",
"exam_centre_name":"Berhampur",
"3":"BIJU PATNAIK WOMEN`S COLLEGE,DIGAPAHANDI",
"institute_name":"BIJU PATNAIK WOMEN`S COLLEGE,DIGAPAHANDI"
},{
"0":"BA 2017-18_ANT_ODD",
"exam_group_name":"BA 2017-18_ANT_ODD",
"1":"EASTZONE",
"zone_name":"EASTZONE",
"2":"Berhampur",
"exam_centre_name":"Berhampur",
"3":"C.A.C.,GANDHI NAGAR MAIN ROAD, BERHAMPUR",
"institute_name":"C.A.C.,GANDHI NAGAR MAIN ROAD, BERHAMPUR"
},{
"0":"BA 2017-18_ANT_ODD","exam_group_name":"BA 2017-18_ANT_ODD","1":"EASTZONE","zone_name":"EASTZONE","2":"Berhampur","exam_centre_name":"Berhampur","3":"DR.B.R.AMBEDKAR DEGREE COLLEGE, RAMAGIRI","institute_name":"DR.B.R.AMBEDKAR DEGREE COLLEGE, RAMAGIRI"},{"0":"BA 2017-18_ANT_ODD","exam_group_name":"BA 2017-18_ANT_ODD","1":"EASTZONE","zone_name":"EASTZONE","2":"Berhampur","exam_centre_name":"Berhampur","3":"G.S.SCIENCE DEGREE COLLEGE,HATIOTO,GANJM","institute_name":"G.S.SCIENCE DEGREE COLLEGE,HATIOTO,GANJM"},{"0":"BA 2017-18_ANT_ODD","exam_group_name":"BA 2017-18_ANT_ODD","1":"EASTZONE","zone_name":"EASTZONE","2":"Berhampur","exam_centre_name":"Berhampur","3":"SRI BELLESWAR MAHAVIDYALAYA, GONDALA","institute_name":"SRI BELLESWAR MAHAVIDYALAYA, GONDALA"},{"0":"BA 2017-18_ANT_ODD","exam_group_name":"BA 2017-18_ANT_ODD","1":"EASTZONE","zone_name":"EASTZONE","2":"Bhadrak","exam_centre_name":"Bhadrak","3":"AERONAUTICS COLLEGE, SUNABEDA","institute_name":"AERONAUTICS COLLEGE, SUNABEDA"},{"0":"BA 2017-18_ANT_ODD","exam_group_name":"BA 2017-18_ANT_ODD","1":"EASTZONE","zone_name":"EASTZONE","2":"Bhadrak","exam_centre_name":"Bhadrak","3":"B.S.AMBEDKAR DEGREE COLLEGE, KHAJURIPADA","institute_name":"B.S.AMBEDKAR DEGREE COLLEGE, KHAJURIPADA"},{"0":"BA 2017-18_ANT_ODD","exam_group_name":"BA 2017-18_ANT_ODD","1":"EASTZONE","zone_name":"EASTZONE","2":"Bhubaneswar","exam_centre_name":"Bhubaneswar","3":"ADIBASI COLLEGE, BALLIGUDA","institute_name":"ADIBASI COLLEGE, BALLIGUDA"},{"0":"BA 2017-18_ANT_ODD","exam_group_name":"BA 2017-18_ANT_ODD","1":"EASTZONE","zone_name":"EASTZONE","2":"Bhubaneswar","exam_centre_name":"Bhubaneswar","3":"ANCHALIK SCIENCE COLLEGE, BALLIPADAR","institute_name":"ANCHALIK SCIENCE COLLEGE, BALLIPADAR"},{"0":"BA 2017-18_ANT_ODD","exam_group_name":"BA 2017-18_ANT_ODD","1":"WESTZONE","zone_name":"WESTZONE","2":"Centre 34","exam_centre_name":"Centre 34","3":"BHAIRAB COLLEGE, DABUGAON","institute_name":"BHAIRAB COLLEGE, DABUGAON"},{"0":"BA 2017-18_ANT_ODD","exam_group_name":"BA 2017-18_ANT_ODD","1":"WESTZONE","zone_name":"WESTZONE","2":"Centre 34","exam_centre_name":"Centre 34","3":"BHAIRAB DEGREE MAHAVIDYALAYA, BORIGUMA","institute_name":"BHAIRAB DEGREE MAHAVIDYALAYA, BORIGUMA"},{"0":"BA 2017-18_ANT_ODD","exam_group_name":"BA 2017-18_ANT_ODD","1":"WESTZONE","zone_name":"WESTZONE","2":"Kanasa","exam_centre_name":"Kanasa","3":"KARUNASANTI RES. COLLEGE, GOLANTHARA,BAM","institute_name":"KARUNASANTI RES. COLLEGE, GOLANTHARA,BAM"},{"0":"BA 2017-18_ANT_ODD","exam_group_name":"BA 2017-18_ANT_ODD","1":"ZONE 1","zone_name":"ZONE 1","2":"Angul","exam_centre_name":"Angul","3":"ASKA SCIENCE COLLEGE, ASKA","institute_name":"ASKA SCIENCE COLLEGE, ASKA"},{"0":"BA 2017-18_ANT_ODD","exam_group_name":"BA 2017-18_ANT_ODD","1":"ZONE 1","zone_name":"ZONE 1","2":"Angul","exam_centre_name":"Angul","3":"MAA MARKAMA COLLEGE, BISSAMCUTTACK","institute_name":"MAA MARKAMA COLLEGE, BISSAMCUTTACK"}]
在这里，我需要根据重复的键值格式化这些数组，并且预期结果应如下所示。
[
{
"zone":"EASTZONE",
"centerData":[
{
"center":"Berhampur",
"subdata":[
{
"Institute":"BALIMELA COLLEGE OF SCIENCE & TECHNOLOGY"
},
{
"Institute":"BIJU PATNAIK WOMEN`S COLLEGE,DIGAPAHANDI"
},
{
"Institute":"C.A.C.,GANDHI NAGAR MAIN ROAD, BERHAMPUR"
}
],
"cntspan":3
},
{
"center":"Bhadrak",
"subdata":[
{
"Institute":"AERONAUTICS COLLEGE, SUNABEDA"
},
{
"Institute":"B.S.AMBEDKAR DEGREE COLLEGE, KHAJURIPADA"
}
],
"cntspan":2
}
],
"zonespan":5
},
{
"zone":"WESTZONE",
"centerData":[
{
"center":"Centre 34",
"subdata":[
{
"Institute":"BHAIRAB COLLEGE, DABUGAON"
},
{
"Institute":"BHAIRAB DEGREE MAHAVIDYALAYA, BORIGUMA"
}
],
"cntspan":2
},
{
"center":"Kanasa",
"subdata":[
{
"Institute":"KARUNASANTI RES. COLLEGE, GOLANTHARA,BAM"
}
],
"cntspan":1
}
],
"zonespan":3
},
{
"zone":"ZONE 1",
"centerData":[
{
"center":"Angul",
"subdata":[
{
"Institute":"ASKA SCIENCE COLLEGE, ASKA"
}
],
"cntspan":1
},
{
"center":"Balasore",
"subdata":[
{
"Institute":"Institute10"
}
],
"cntspan":1
}
],
"zonespan":2
}
]
以上是我期望的数组格式。这里的要求是数组将按照zone_name and exam_centre_name进行排序。中心计数和区域计数也将通过键cntspan and zonespan存在。我在下面解释我现有的代码。
$resultArr=array();
foreach ($output as $k => $value) {
$zonecnt=0;
if (count($resultArr)==0) {
$resultArr[]=array("zone"=>$value['zone_name'],"centerData"=>array(array("center"=>$value['exam_centre_name'],"subdata"=>array(array("Institute"=>$value['institute_name'])))),'zonespan'=>$zonecnt+1);
}else{
foreach ($resultArr as $l => $v) {
if ($resultArr[$l]['zone']==$value['zone_name']) {
foreach ($v['centerData'] as $m => $val) {
if ($val['center']==$value['exam_centre_name']) {
$val['subdata'][]=array("Institute"=>$value['institute_name']);
}else{
$v['centerData'][]=array(array("center"=>$value['exam_centre_name'],"subdata"=>array(array("Institute"=>$value['institute_name']))));
break;
}
}
}else{
$resultArr[]=array("zone"=>$value['zone_name'],"centerData"=>array(array("center"=>$value['exam_centre_name'],"subdata"=>array(array("Institute"=>$value['institute_name'])))),'zonespan'=>$zonecnt+1);
}
}
}
}
echo json_encode($resultArr);exit;
在这里我无法获得适当的数组格式。我需要根据这些键值对数据库值进行排序。
答案 0 :(得分：0)
通过匹配key =>值对，您可以尝试遍历json并按照新的数组格式重新组织数据。
这是我的意思的不完整示例
$centers = array();
$current_zone = '';
foreach($jsondata as $key=>$value){
if(preg_match('/^(zone_name)/',$key)){
$current_zone = $value;
$center[$current_zone] = array('zone_name'=>$value,'subdata'=>'');
}elseif(preg_match('/^(institute_name)/',$key)){
$contract[$current_section][subdata][Institute] = $value;
}
}