Question

$data = array("0"=>"1","id"=>"1","1"=>"mani","name"=>"mani","2"=>"ssss","lname"=>"ssss");

上面是我的输出，但我想要一个像下面格式的数组。请帮帮我。

正确输出：

$data = array ("id"=>"1","name"=>"mani","lname"=>"ssss");

Answer 1

选中此项，使用is_numeric来检查号码或字符串。

$data = array("0"=>"1","id"=>"1","1"=>"mani","name"=>"mani","2"=>"ssss","lname"=>"ssss");

foreach ($data as $key => $val)
{
    if(!is_numeric($key))
    {
        $new_array[$key] = $val;
    }
}  

print_r($new_array);

输出：

Array
(
    [id] => 1
    [name] => mani
    [lname] => ssss
)

<强> DEMO

Answer 2

下面的Code-Snippet包含自我解释性评论。它可能会有所帮助：

<?php

    // SEEMS LIKE YOU WANT TO REMOVE ITEMS WITH NUMERIC INDEXES...

    $data       = array(    "0"    => "1",
                            "id"   => "1",
                            "1"    => "mani",
                            "name" => "mani",
                            "2"    => "ssss",
                            "lname"=> "ssss"
                        );

    // SO WE CREATE 2 VARIABLES TO HOLD THE RANGE OF INTEGERS
    // TO BE USED TO GENERATE A RANGE OF ARRAY OF NUMBERS
    $startNum   = 0;        //<==   START-NUMBER FOR OUR RANGE FUNCTION
    $endNum     = 10;       //<==   END-NUMBER FOR OUR RANGE FUNCTION

    // GENERATE THE RANGE AND ASSIGN IT TO A VARIABLE
    $arrNum     = range($startNum, $endNum);

    // CREATE A NEW ARRAY TO HOLD THE WANTED ARRAY ITEMS
    $newData    = array();

    // LOOP THROUGH THE ARRAY... CHECK WITH EACH ITERATION
    // IF THE KEY IS NUMERIC... (COMPARING IT WITH OUR RANGE-GENERATED ARRAY)
    foreach($data as $key=>$value){
        if(!array_key_exists($key, $arrNum)){
            // IF THE KEY IS NOT SOMEHOW PSEUDO-NUMERIC,
            // PUSH IT TO THE ARRAY OF WANTED ITEMS... $newData
            $newData[$key]  = $value;
        }
    }

    // TRY DUMPING THE NEWLY CREATED ARRAY:
    var_dump($newData);
    // YIELDS::
    array (size=3)
      'id' => string '1' (length=1)
      'name' => string 'mani' (length=4)
      'lname' => string 'ssss' (length=4)

或者甚至简洁地说，你可以这样走过数组：

<?php

    $data       = array(    
                        "0"     => "1",
                        "id"    => "1",
                        "1"     => "mani",
                        "name"  => "mani",
                        "2"     => "ssss",
                        "lname" => "ssss"
                        );

    array_walk($data, function($value, $index) use(&$data) {
        if(is_numeric($index)){
            unset($data[$index]);
        }
    });

    var_dump($data);
    // YIELDS::
    array (size=3)
      'id' => string '1' (length=1)
      'name' => string 'mani' (length=4)
      'lname' => string 'ssss' (length=4)

Answer 3

$data = array("0"=>"1","id"=>"1","1"=>"mani","name"=>"mani","2"=>"ssss","lname"=>"ssss");
$new_data = array();
foreach($data as $k => $v)
if(strlen($k)>1) $new_data[$k] = $v;

print_r($new_data);

Answer 4

我对你究竟想要的东西感到有些困惑。您提供输出示例，但它们看起来像代码。如果您希望输出看起来像代码，那么您需要更清楚。

从长远来看，查看教程和文档对你来说有很多好处。 PHP.net是一个很好的资源，数组文档可以帮助你解决这个问题：http://php.net/manual/en/function.array.php

删除php数组中不需要的键/值对？

4 个答案: