整个代码正常工作，只是我的第三个维度的“数据承包商”字段无法正常工作。
<?php
$array=Array
(
"0" => Array
(
"sid" => 10,
"contractorid" => 1,
"fname" => "hi",
"lname" => "fam",
"sname" => "saba",
"materialname" => "beton",
"netweight" => 100,
),
"1" => Array
(
"sid" => 16,
"contractorid" => 2,
"fname" => "a",
"lname" => "a",
"sname" => "khoram",
"materialname" => "kk",
"netweight" => 200,
),
"2" => Array
(
"sid" => 16,
"contractorid" => 7,
"fname" => "a",
"lname" => "a",
"sname" => "khoram",
"materialname" => "kk",
"netweight" => 777,
),
"3" => Array
(
"sid" => 10,
"contractorid" => 5,
"fname" => "hi",
"lname" => "fam",
"sname" => "saba",
"materialname" => "beton",
"netweight" => 200,
),
"4" => Array
(
"sid" => 10,
"contractorid" => 8,
"fname" => "hi",
"lname" => "fam",
"sname" => "saba",
"materialname" => "beton",
"netweight" => 600,
),
"5" => Array
(
"sid" => 15,
"contractorid" => 9,
"fname" => "hi",
"lname" => "fam",
"sname" => "saba",
"materialname" => "beton",
"netweight" => 400,
),
);
$finalarray[]= array();
$sidlist= array();
$arraycount=count($array);
for($i=0;$i<$arraycount ;$i++) {
array_push($sidlist,$array[$i]["sid"]);
}
$sidlist = array_unique($sidlist);
$sidlistcount=count($sidlist);
$sidlist1=array();
foreach ($sidlist as $m){
array_push($sidlist1,$m);
}
for ($i = 0;$i<$sidlistcount ; $i++){
$id=$sidlist1[$i];
$datacontractor[$id]= array();
for ($j = 0;$j<$arraycount ; $j++){
if ($id==$array[$j]["sid"]){
$contractorid = $array[$j]["contractorid"];
$netweight = $array[$j]["netweight"];
$finalarray[$i]=array(
"sid" => $id,
"fname" => $array[$j]["fname"],
"lname" => $array[$j]["lname"],
"sname" => $array[$j]["sname"],
"materialname" => $array[$j]["materialname"],
"datacontractor" => $datacontractor[$id],
);
$datacontractor[$id]["$contractorid"]=$netweight;
echo $id,"<br>";
}
}
}
echo '<pre>';
print_r($finalarray);
echo '<pre>';
Array ([0] => Array
(
[sid] => 10
[fname] => hi
[lname] => fam
[sname] => saba
[materialname] => beton
[datacontractor] => Array
(
[1] => 100
[5] => 200
)
)[1] => Array
(
[sid] => 16
[fname] => a
[lname] => a
[sname] => khoram
[materialname] => kk
[datacontractor] => Array
(
[2] => 200
)
)[2] => Array
(
[sid] => 15
[fname] => hi
[lname] => fam
[sname] => saba
[materialname] => beton
[datacontractor] => Array
(
)
))
请检查并告诉我我的错是什么。
Array ([0] => Array
(
[sid] => 10
[fname] => hi
[lname] => fam
[sname] => saba
[materialname] => beton
[datacontractor] => Array
(
[1] => 100
[5] => 200
[8] => 600
)
)[1] => Array
(
[sid] => 16
[fname] => a
[lname] => a
[sname] => khoram
[materialname] => kk
[datacontractor] => Array
(
[2] => 200
[7] => 777
)
)[2] => Array
(
[sid] => 15
[fname] => hi
[lname] => fam
[sname] => saba
[materialname] => beton
[datacontractor] => Array
(
[9] => 400
)
))
答案 0 :(得分：1)
在将所有数据插入"datacontractor" => $datacontractor[$id]->之前，请将finalarray设置为$datacontractor[$id]，然后在单独的循环中完成。
您的代码要比实际需要的复杂得多。
考虑以下简短版本：
$array = []; // this is just some of the fields - you can add all of then here
$array[] = array("id"=> 10, "contractorid" => 1,"netweight" => 100);
$array[] = array("id"=> 16, "contractorid" => 2,"netweight" => 200);
$array[] = array("id"=> 16, "contractorid" => 7,"netweight" => 777);
$array[] = array("id"=> 10, "contractorid" => 5,"netweight" => 200);
$array[] = array("id"=> 10, "contractorid" => 8,"netweight" => 600);
$array[] = array("id"=> 15, "contractorid" => 9,"netweight" => 400);
$ans = [];
foreach($array as $e) {
if (!isset($ans[$e['id']])) { // if never set do first time
$ans[$e['id']] = array("sid" => $e['id'], "datacontractor" => array($e["contractorid"] => $e["netweight"])); // here you can add all your other fields as fname, lname...
} else {
$ans[$e['id']]["datacontractor"][$e["contractorid"]] = $e["netweight"]; // just add the new field as already set
}
}
现在，$ans将输出您的愿望
修改：
将多个contractorid值更改为此：
foreach($array as $e) {
if (!isset($ans[$e['id']])) { // if never set do first time
$ans[$e['id']] = array("sid" => $e['id'], "datacontractor" => array($e["contractorid"] => [$e["netweight"]])); // notice "contractorid" has array inside (extra "[]" around $e["netweight"])
} else {
$ans[$e['id']]["datacontractor"][$e["contractorid"]][] = $e["netweight"]; // append to the contractorid array
}
}
对于重新索引$ans，请在最后执行以下操作：$ans = array_values($ans);
答案 1 :(得分：1)
您可以使用array_reduce
$data = array_reduce($array, function ($old, $new) {
if (isset($old[$new['sid']])) {
$new['datacontractor'] = array_merge($old[$new['sid']]['datacontractor'], [$new['netweight']]);
$old[$new['sid']] = $new;
} else {
$new['datacontractor'] = [$new['netweight']];
}
unset($new['netweight']);
$old[$new['sid']] = $new;
return $old;
}, []);
$data = array_values($data);
print '<pre>';
print_r($data);
print '</pre>';