Question

以下是我的$newArr0，它是一个对象数组。

Array
(
    [0] => stdClass Object
        (
            [created_at] => Mon Dec 08 03:04:47 +0000 2014
            [text] => How a individual man can adopt a village in andhra real guds needed hats off to you MASTER BLASTER #Sachin
            [source] => Twitter Web Client
        )
    [1] => stdClass Object
        (
            [created_at] => Sun Dec 07 17:23:25 +0000 2014
            [text] => #two #cool #peoples ..#Coolfieee ..#me nd #Sachin http://t.co/JU971nWAPo
            [source] => Instagram

    [2] => stdClass Object
        (
            [created_at] => Sun Dec 07 15:18:22 +0000 2014
            [text] => Snga hit 90 odi international fifty...can he hit 6 more to break sachin s fifty record ..#sachin 96 odi fifty ...
kya lgta h tod dega record
            [source] => Twitter Web Client
        )    
    [3] => stdClass Object        
            [created_at] => Sun Dec 07 14:50:53 +0000 2014
            [text] => @jeeturaaj Jeeturaaj want @sachin chi book pahje, please give #Sachin #playingitmyway ......:)
            [source] => Twitter Web Client
        )

    [4] => stdClass Object
            [created_at] => Sun Dec 07 14:33:49 +0000 2014
            [text] => RT @UthMag: Old... http://t.co/b1HMzE3TZI #BCCI #cricket #featured #global #ICC #india #littlemaster #News #ODI #retire #sachin #sports #teâ€¦
            [source] => Twitter for Android
        )
)

我正在尝试从数组中删除一个带有source名称的密钥，所以我尝试了这段代码 -

foreach ($newArr0 as $nkey1 => $nval1) {
    if($nkey1 == "source") {
        unset($newArr0["source"]);
    }
}

但是从$newArr0移除密钥是让我知道我在这里做错了什么。

Answer 1

<?php
$newArr = array();

foreach ($newArr0 as $key => $value) {
    unset($value->source);
    $newArr[$key] = $value;
}
$newArr0 = $newArr;

Demo

Answer 2

首先，它是数组中对象的集合，因此您可以在循环内的每个对象上使用->箭头运算符。然后，或者，您可以引用foreach中对象的每个副本并使其未设置。

foreach($newArr0 as &$nval1) {
    // for each object inside `$newArr0` is in `$nval1`
    unset($nval1->source);
    // unset $nval1's source 
}

Answer 3

下面：

foreach ($array as $key => & $object) {
    if ($object->source === 'source') {
        unset($array[$key]);
    }
}

在PHP中取消设置（删除）数组键

3 个答案: