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如何在php中替换嵌套数组值

php arrays

如何在php中替换嵌套数组值,php,arrays,Php,Arrays,它是我的数组值 在这里，我发送了一些值，例如该酒店的酒店id和徽标 但我应该需要发送作为图像URL的标志 i、 e:，对于此：1463466926-97157549.jpg 我需要把它作为 http://localhost/abservetech/laravel/abserve_crud_travelz/public/1463466926-97157549.jpg 通过添加该图像的路径 最后，我的数组应该是这样的 Array ( [0] => Array (

它是我的数组值

在这里，我发送了一些值，例如该酒店的
酒店id
和
徽标

但我应该需要发送作为图像URL的标志

i、 e:，对于此：
1463466926-97157549.jpg
我需要把它作为 
http://localhost/abservetech/laravel/abserve_crud_travelz/public/1463466926-97157549.jpg

通过添加该图像的路径

最后，我的数组应该是这样的

Array
(
    [0] => Array
        (
            [hotel_id] => 79
            [logo] => 1463466926-97157549.jpg
        )

    [1] => Array
        (
            [hotel_id] => 78
            [logo] => 1463466942-15603675.jpg
        )

    [2] => Array
        (
            [hotel_id] => 77
            [logo] => 1463466953-25200244.jpg
        )

    [3] => Array
        (
            [hotel_id] => 76
            [logo] => 1463466967-62926110.jpg
        )

    [4] => Array
        (
            [hotel_id] => 75
            [logo] => 
        )

    [5] => Array
        (
            [hotel_id] => 74
            [logo] => 
        )

)
这里，最后两个酒店有空图像

为此，我发送了一个默认图像URL，如
http://localhost/abservetech/laravel/abserve_crud_travelz/public/300x300.jpg

像这样

Array
(
    [0] => Array
        (
            [hotel_id] => 79
            [logo] => 1463466926-97157549.jpg
        )

    [1] => Array
        (
            [hotel_id] => 78
            [logo] => 1463466942-15603675.jpg
        )

    [2] => Array
        (
            [hotel_id] => 77
            [logo] => 1463466953-25200244.jpg
        )

    [3] => Array
        (
            [hotel_id] => 76
            [logo] => 1463466967-62926110.jpg
        )

    [4] => Array
        (
            [hotel_id] => 75
            [logo] => 
        )

    [5] => Array
        (
            [hotel_id] => 74
            [logo] => 
        )

)
有人能帮我吗

先谢谢你

我已经这样试过了

Array
(
    [0] => Array
        (
            [hotel_id] => 79
            [logo] => http://localhost/abservetech/laravel/abserve_crud_travelz/public/1463466926-97157549.jpg
        )

    [1] => Array
        (
            [hotel_id] => 78
            [logo] => http://localhost/abservetech/laravel/abserve_crud_travelz/public/1463466942-15603675.jpg
        )

    [2] => Array
        (
            [hotel_id] => 77
            [logo] => http://localhost/abservetech/laravel/abserve_crud_travelz/public/1463466953-25200244.jpg
        )

    [3] => Array
        (
            [hotel_id] => 76
            [logo] => http://localhost/abservetech/laravel/abserve_crud_travelz/public/1463466967-62926110.jpg
        )

    [4] => Array
        (
            [hotel_id] => 75
            [logo] => http://localhost/abservetech/laravel/abserve_crud_travelz/public/300x300.jpg
        )

    [5] => Array
        (
            [hotel_id] => 74
            [logo] => http://localhost/abservetech/laravel/abserve_crud_travelz/public/300x300.jpg
        )

)
这里，
\URL:：to（“”）。“/”
是我的路径，
$Roo
是我的数组

但是，它只在单独的数组中检索
徽标。
说您的数组名是
$arr
，因此开始遍历整个数组，如果酒店id匹配，则用新徽标替换您的徽标


$im =array();
foreach ($Roo as $key => $value) 
{
    $im[]=(\URL::to('').'/'.$value['logo']);
}


使用
&
意味着数组是引用的，因此您在此处更改的内容必须在主数组中更新，这是可选的


foreach($hotel_details as $key => $detail) {

    if(!empty($detail['logo']) {

        $detail['logo'] = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/'.$detail['logo']
        $hotel_destails[$key] = $detail

    } else {

        $detail['logo'] = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/300x300.jpg'
        $hotel_destails[$key] = $detail

    }
}


注意：如果您想更改整个阵列，那么它将非常容易，
只需删除if条件


假设您的阵列名称为
$arr
，那么开始遍历整个阵列，如果酒店id匹配，则用新的徽标替换您的徽标

使用
&
意味着数组是引用的，因此您在此处更改的内容必须在主数组中更新，这是可选的


foreach($hotel_details as $key => $detail) {

    if(!empty($detail['logo']) {

        $detail['logo'] = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/'.$detail['logo']
        $hotel_destails[$key] = $detail

    } else {

        $detail['logo'] = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/300x300.jpg'
        $hotel_destails[$key] = $detail

    }
}


注意：如果您想更改整个阵列，那么它将非常容易，
只需删除if条件


循环遍历阵列并按如下方式更新阵列：


$path = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/';
$hotel_id = 79;

foreach($arr as $key => &$value){
    if($value['hotel_id'] == $hotel_id){
       $value['logo'] = $path.$value['logo'];
       break;
    }
}

print_r($arr);



循环遍历阵列并按如下方式更新阵列：


$path = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/';
$hotel_id = 79;

foreach($arr as $key => &$value){
    if($value['hotel_id'] == $hotel_id){
       $value['logo'] = $path.$value['logo'];
       break;
    }
}

print_r($arr);



你应该查一下

使用此条目数组：


foreach ($array as $key => &$value) {
    if ($value['logo'] != '') {
        $value['logo'] = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/'.$value['logo'];
    } else {
        $value['logo'] = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/300x300.jpg';
    }
}
print_r($array);



Array
(
    [0] => Array
        (
            [hotel_id] => 0
            [logo] => image_0.jpg
        )

    [1] => Array
        (
            [hotel_id] => 1
            [logo] => image_1.jpg
        )

    [2] => Array
        (
            [hotel_id] => 2
            [logo] => image_2.jpg
        )

    [3] => Array
        (
            [hotel_id] => 3
            [logo] => 
        )

    [4] => Array
        (
            [hotel_id] => 4
            [logo] => image_4.jpg
        )

)



Array
(
    [0] => Array
        (
            [hotel_id] => 0
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_0.jpg
        )

    [1] => Array
        (
            [hotel_id] => 1
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_1.jpg
        )

    [2] => Array
        (
            [hotel_id] => 2
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_2.jpg
        )

    [3] => Array
        (
            [hotel_id] => 3
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/300x300.jpg
        )

    [4] => Array
        (
            [hotel_id] => 4
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_4.jpg
        )

)


您可以获得以下输出数组：


foreach ($array as $key => &$value) {
    if ($value['logo'] != '') {
        $value['logo'] = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/'.$value['logo'];
    } else {
        $value['logo'] = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/300x300.jpg';
    }
}
print_r($array);



Array
(
    [0] => Array
        (
            [hotel_id] => 0
            [logo] => image_0.jpg
        )

    [1] => Array
        (
            [hotel_id] => 1
            [logo] => image_1.jpg
        )

    [2] => Array
        (
            [hotel_id] => 2
            [logo] => image_2.jpg
        )

    [3] => Array
        (
            [hotel_id] => 3
            [logo] => 
        )

    [4] => Array
        (
            [hotel_id] => 4
            [logo] => image_4.jpg
        )

)



Array
(
    [0] => Array
        (
            [hotel_id] => 0
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_0.jpg
        )

    [1] => Array
        (
            [hotel_id] => 1
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_1.jpg
        )

    [2] => Array
        (
            [hotel_id] => 2
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_2.jpg
        )

    [3] => Array
        (
            [hotel_id] => 3
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/300x300.jpg
        )

    [4] => Array
        (
            [hotel_id] => 4
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_4.jpg
        )

)


只需这样做：


foreach ($array as $key => &$value) {
    if ($value['logo'] != '') {
        $value['logo'] = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/'.$value['logo'];
    } else {
        $value['logo'] = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/300x300.jpg';
    }
}
print_r($array);



Array
(
    [0] => Array
        (
            [hotel_id] => 0
            [logo] => image_0.jpg
        )

    [1] => Array
        (
            [hotel_id] => 1
            [logo] => image_1.jpg
        )

    [2] => Array
        (
            [hotel_id] => 2
            [logo] => image_2.jpg
        )

    [3] => Array
        (
            [hotel_id] => 3
            [logo] => 
        )

    [4] => Array
        (
            [hotel_id] => 4
            [logo] => image_4.jpg
        )

)



Array
(
    [0] => Array
        (
            [hotel_id] => 0
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_0.jpg
        )

    [1] => Array
        (
            [hotel_id] => 1
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_1.jpg
        )

    [2] => Array
        (
            [hotel_id] => 2
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_2.jpg
        )

    [3] => Array
        (
            [hotel_id] => 3
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/300x300.jpg
        )

    [4] => Array
        (
            [hotel_id] => 4
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_4.jpg
        )

)



其中，
$arr
是包含您的酒店的阵列，
$res
将是修改后的阵列。
您应该在那里查看

使用此条目数组：


foreach ($array as $key => &$value) {
    if ($value['logo'] != '') {
        $value['logo'] = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/'.$value['logo'];
    } else {
        $value['logo'] = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/300x300.jpg';
    }
}
print_r($array);



Array
(
    [0] => Array
        (
            [hotel_id] => 0
            [logo] => image_0.jpg
        )

    [1] => Array
        (
            [hotel_id] => 1
            [logo] => image_1.jpg
        )

    [2] => Array
        (
            [hotel_id] => 2
            [logo] => image_2.jpg
        )

    [3] => Array
        (
            [hotel_id] => 3
            [logo] => 
        )

    [4] => Array
        (
            [hotel_id] => 4
            [logo] => image_4.jpg
        )

)



Array
(
    [0] => Array
        (
            [hotel_id] => 0
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_0.jpg
        )

    [1] => Array
        (
            [hotel_id] => 1
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_1.jpg
        )

    [2] => Array
        (
            [hotel_id] => 2
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_2.jpg
        )

    [3] => Array
        (
            [hotel_id] => 3
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/300x300.jpg
        )

    [4] => Array
        (
            [hotel_id] => 4
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_4.jpg
        )

)


您可以获得以下输出数组：


foreach ($array as $key => &$value) {
    if ($value['logo'] != '') {
        $value['logo'] = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/'.$value['logo'];
    } else {
        $value['logo'] = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/300x300.jpg';
    }
}
print_r($array);



Array
(
    [0] => Array
        (
            [hotel_id] => 0
            [logo] => image_0.jpg
        )

    [1] => Array
        (
            [hotel_id] => 1
            [logo] => image_1.jpg
        )

    [2] => Array
        (
            [hotel_id] => 2
            [logo] => image_2.jpg
        )

    [3] => Array
        (
            [hotel_id] => 3
            [logo] => 
        )

    [4] => Array
        (
            [hotel_id] => 4
            [logo] => image_4.jpg
        )

)



Array
(
    [0] => Array
        (
            [hotel_id] => 0
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_0.jpg
        )

    [1] => Array
        (
            [hotel_id] => 1
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_1.jpg
        )

    [2] => Array
        (
            [hotel_id] => 2
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_2.jpg
        )

    [3] => Array
        (
            [hotel_id] => 3
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/300x300.jpg
        )

    [4] => Array
        (
            [hotel_id] => 4
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_4.jpg
        )

)


只需这样做：


foreach ($array as $key => &$value) {
    if ($value['logo'] != '') {
        $value['logo'] = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/'.$value['logo'];
    } else {
        $value['logo'] = 'http://localhost/abservetech/laravel/abserve_crud_travelz/public/300x300.jpg';
    }
}
print_r($array);



Array
(
    [0] => Array
        (
            [hotel_id] => 0
            [logo] => image_0.jpg
        )

    [1] => Array
        (
            [hotel_id] => 1
            [logo] => image_1.jpg
        )

    [2] => Array
        (
            [hotel_id] => 2
            [logo] => image_2.jpg
        )

    [3] => Array
        (
            [hotel_id] => 3
            [logo] => 
        )

    [4] => Array
        (
            [hotel_id] => 4
            [logo] => image_4.jpg
        )

)



Array
(
    [0] => Array
        (
            [hotel_id] => 0
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_0.jpg
        )

    [1] => Array
        (
            [hotel_id] => 1
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_1.jpg
        )

    [2] => Array
        (
            [hotel_id] => 2
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_2.jpg
        )

    [3] => Array
        (
            [hotel_id] => 3
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/300x300.jpg
        )

    [4] => Array
        (
            [hotel_id] => 4
            [logo] => http://some_addr.tld/some_dir/some_sub_dir/image_4.jpg
        )

)



其中，
$arr
是包含酒店的阵列，
$res
将是修改后的阵列。
您可以通过以下代码实现这一点：


$base = 'http://some_addr.tld/some_dir/some_sub_dir/';

$default = '300x300.jpg';

$res = array_map(
    function($x) use ($base, $default)
    {
        if ( array_key_exists( 'logo', $x ) )
        {
            if ( !empty( $x['logo'] ) )
            {
                $x['logo'] = $base . $x['logo'];
            }
            else
            {
                $x['logo'] = $base . $default;
            }
        }

        return $x;
    }
    , $arr);



您可以通过以下代码实现这一点：


$base = 'http://some_addr.tld/some_dir/some_sub_dir/';

$default = '300x300.jpg';

$res = array_map(
    function($x) use ($base, $default)
    {
        if ( array_key_exists( 'logo', $x ) )
        {
            if ( !empty( $x['logo'] ) )
            {
                $x['logo'] = $base . $x['logo'];
            }
            else
            {
                $x['logo'] = $base . $default;
            }
        }

        return $x;
    }
    , $arr);



到目前为止你尝试了什么？非常不清楚和模糊。。。我建议改变你的问题：你期望什么样的调用（输入）？输出是什么？你能提供一个工作案例吗？你能提供一些你已经做过的尝试吗？使用foreach循环，遍历整个数组，如果
酒店id
匹配，用新的替换你的
徽标。@Frayne Konok你能用一个例子解释一下吗..请说明你到目前为止做了什么？非常不清楚和模糊。。。我建议改变你的问题：你期望什么样的调用（输入）？输出是什么？你能提供一个工作案例吗？你能提供一些你做过的尝试吗？使用foreach循环，遍历整个数组，如果
酒店id
匹配，用新的替换你的
徽标。@Frayne Konok你能用一个例子解释一下吗..请简单明了：）…但我不知道你为什么在
$value
之前使用
&
，添加后，只会将结果作为参考。查看Hoo fine中的参考资料。谢谢：）简单易用：）…但我不知道为什么在添加该参考资料之后，在添加$value之前使用
&
，而在添加该参考资料之后，只使用结果作为参考。查看Hoo fine中的参考资料。谢谢：）谢谢Frayne Konok，为什么为
hotel\u id
赋值，在我的数组中，hotel\u id可以根据我的结果随机更改。为什么您在这里使用此行我发送了一些值，例如hotel\u id和该酒店的徽标？？？谢谢Frayne Konok，为什么您为
酒店id
分配值，在我的数组中，酒店id可以根据我的结果随机更改为什么您在这里使用此行我发送了一些值，例如酒店id和该酒店的徽标。。？？？