如何在PHP中用鍵刪除空數組值？

-2

{"form_data":["1","2","4","5","","6"],"final_data":["1","2","4","5","","6"]}

如果表單數據值null，我想下一個鍵的值來代替該鍵的值。像上面那樣，在值5之後，我有空值。它需要是這樣的：

"final_data":["1","2","4","5","fill this with 6","remove this"] 
"final_data":["1","2","4","5","6"] like this

我試過array_filter()，但它沒有幫助。

來源

2017-09-22 Bhautik

輸出'的array_flter'功能 –

可能重複[刪除空數組元件]（HT tps：//stackoverflow.com/questions/3654295/remove-empty-array-elements） – Script47

下面的代碼試試，

foreach($myarray as $key=>$value) 
{ 
    if(is_null($value) || $value == '') 
     unset($myarray[$key]); 
}

來源

2017-09-22 11:55:10

考慮['trim']（http://php.net/manual/en/function.trim.php）。 – Script47

如果響應是JSON格式，然後...

$json = '{"form_data":["1","2","4","5","","6"],"final_data":["1","2","4","5","","6"]}'; 
$array = json_decode($json, TRUE); 

foreach($array as $index => $a) { 
    $array[$index] = array_filter($a); 
} 

print_r($array);

https://eval.in/866379

更新：

foreach($array as $index => $a) { 
    $array[$index] = array_value(array_filter($a)); 
}

https://eval.in/866522

來源

2017-09-22 12:01:15 MasoodUrRehman

@MassoodUrRehman謝謝但在你的例子中可能的索引值可以是4而不是5 – Bhautik

是的，你可以使用array_value（）對array_filter（）的響應來重新索引結果數組。 – MasoodUrRehman

試試這個array_filter()與array_map()和array_values()

<?php 
    $array = array("form_data" => array("1","2","4","5","","6"), "final_data" => array("1","2","4","5","","6")); 
    function filterMe($paraArr){ 
     return array_values(array_filter($paraArr)); 
    } 
    $array = array_map("filterMe",$array); 
    echo "<pre>"; 
    print_r($array);

檢查這裏https://eval.in/866401

來源

2017-09-22 12:30:27

如何在PHP中用鍵刪除空數組值？

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