PHP 陣列的拼接重組-php教程-PHP中文網

現在的程式碼是這樣的
array(6) {
[0] => string(5) "58,86"
[1] => string(5) "68,78"
[2] => string (5) "65,78"
[3] => string(5) "60,82"

但是資料處理需要得到的內容應該是
array(1){

1 2	`<code>[0] => 58,68,65,60` `[1] => 86,78,78,82</code>`

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}

請問下資料處理如何處理

想了想之後思路是先遍歷然後拆分值再拼接只不過在最後組裝的時候有1個空的key 不知道從哪裡來的
array(6) {
[0] => string(5) "58,86"
[1] => string(5) "68,78"
[2] => string(5) "65,78"
[3] => string(5) "60,82"
[4] => string(3) "094"
[5] => string(2) "40"
}、

foreach($lsj['data'] as $key=>$val){

<code>    $a[''] = $a[$key] = explode(',',$val);
   }
   </code>

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之後得到
array(7) {
[0] => array(2) {

1 2	`<code>[0] => string(2)` `"58"` `[1] => string(2)` `"86"</code>`

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}
[""] => array(1) {

1	`<code>[0] => string(2)` `"40"</code>`

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}
[1] => array(2) {

1 2	`<code>[0] => string(2)` `"68"` `[1] => string(2)` `"78"</code>`

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}
[2] => array(2) {

1 2	`<code>[0] => string(2)` `"65"` `[1] => string(2)` `"78"</code>`

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}
[3] => array(2) {

1 2	`<code>[0] => string(2)` `"60"` `[1] => string(2)` `"82"</code>`

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}
[4] => array(1) {

1	`<code>[0] => string(3)` `"094"</code>`

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}
[5] => array(1) {

1	`<code>[0] => string(2)` `"40"</code>`

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}
}
然後在把相同的key 組裝成一個新的數組因為本人的PHP版本為5.4無法使用array_column 所有寫了一個公共的方法 i_array_column()

$b['data1'] = i_array_column($a,'0');
$b['data2'] = i_array_column($a,'1');

得到1個陣列
array(2) {
["data1"] => array(7) {

<code>[0] => string(2) "58"
[""] => string(2) "40"
[1] => string(2) "68"
[2] => string(2) "65"
[3] => string(2) "60"
[4] => string(3) "094"
[5] => string(2) "40"</code>

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}
["data2"] => array(7) {

<code>[0] => string(2) "86"
[""] => NULL
[1] => string(2) "78"
[2] => string(2) "78"
[3] => string(2) "82"
[4] => NULL
[5] => NULL</code>

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}
}
因為highcharts需要json格式所以轉換json格式
dump(json_encode($b));、
準換後結果為
string(146) "{"data1":{"0":"58" ,"":"40","1":"68","2":"65","3":"60","4":"094","5":"40"}," data2":{"0":"86","":null,"1":"78","2":"78","3":"82","4":null,"5" :null}}"

只不過不知道為什麼會有一個空的陣列

回覆內容：

現在的程式碼是這樣的
array(6) {
[0] => string(5) "58,86"
[1] => string(5) "68,78"
[2] => string (5) "65,78"
[3] => string(5) "60,82"

但是資料處理需要得到的內容應該是
array(1){

1 2	`<code>[0] => 58,68,65,60` `[1] => 86,78,78,82</code>`

登入後複製

}

請問下資料處理如何處理

foreach($lsj['data'] as $key=>$val){

<code>    $a[''] = $a[$key] = explode(',',$val);
   }
   </code>

登入後複製

之後得到
array(7) {
[0] => array(2) {

1 2	`<code>[0] => string(2)` `"58"` `[1] => string(2)` `"86"</code>`

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}
[""] => array(1) {

1	`<code>[0] => string(2)` `"40"</code>`

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}
[1] => array(2) {

1 2	`<code>[0] => string(2)` `"68"` `[1] => string(2)` `"78"</code>`

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}
[2] => array(2) {

1 2	`<code>[0] => string(2)` `"65"` `[1] => string(2)` `"78"</code>`

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}
[3] => array(2) {

1 2	`<code>[0] => string(2)` `"60"` `[1] => string(2)` `"82"</code>`

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}
[4] => array(1) {

1	`<code>[0] => string(3)` `"094"</code>`

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}
[5] => array(1) {

1	`<code>[0] => string(2)` `"40"</code>`

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}
}
然後在把相同的key 組裝成一個新的數組因為本人的PHP版本為5.4無法使用array_column 所有寫了一個公共的方法 i_array_column()

$b['data1'] = i_array_column($a,'0');
$b['data2'] = i_array_column($a,'1');

得到1個陣列
array(2) {
["data1"] => array(7) {

<code>[0] => string(2) "58"
[""] => string(2) "40"
[1] => string(2) "68"
[2] => string(2) "65"
[3] => string(2) "60"
[4] => string(3) "094"
[5] => string(2) "40"</code>

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}
["data2"] => array(7) {

<code>[0] => string(2) "86"
[""] => NULL
[1] => string(2) "78"
[2] => string(2) "78"
[3] => string(2) "82"
[4] => NULL
[5] => NULL</code>

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只不過不知道為什麼會有一個空的陣列

<?php 
$arr = ["58,86,1,18",
"68,78,2,17",
"65,78,3,17",
"60,82,4,19",
"4,5,6,18"];
 
 
array_walk($arr, function(&$item) {
    $item = explode(',', $item);
});
 
$new_arr = [];
$length = count($arr);
for ($i = 0; $i < $length; $i++) {
    $length1 = count($arr[$i]);
    for ($j = 0; $j < $length1; $j++) {
        $new_arr[$j][$i] = $arr[$i][$j];
    }
}
 
array_walk($new_arr, function(&$item) {
    $item = join(',', $item);
});
 
print_r($new_arr);

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矩陣轉置, 上面這個方法可以推廣到多維矩陣

寫一個僅為你這個情況作處理的，分析了一下，你這個情況是把數組內的字串進行分割的處理

<code>    $arr = array("58,86","68,78","65,78","60,82");
    foreach($arr as $key => $value){
        $tmp = explode(',',$value);
        $a[] = $tmp[0];
        $b[] = $tmp[1];
    }
    $c = array(
        implode(',',$a),implode(',',$b)
    );
    print_r($c);</code>

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