从PHP数组删除值 [英] Removing a value from a PHP Array

问题描述

使用PHP我想基于元素的值从一个数组中删除元素。

例如用下面的数组：

 阵列
（
    [671] =＆GT;排列
        （
            [0] =＆GT; 1
            [1] =＆GT; 100
            [2] =＆GT; 1000
        ）
    [900] =＆GT;排列
        （
            [0] =＆GT; 15
            [1] =＆GT; 88
        }
）
 

我希望能够指定对内部阵列可以删除该值。因为如果我指定的100个实例的结果数组将如下所示：

 阵列
（
    [671] =＆GT;排列
        （
            [0] =＆GT; 1
            [2] =＆GT; 1000
        ）
    [900] =＆GT;排列
        （
            [0] =＆GT; 15
            [1] =＆GT; 88
        }
）
 

我的第一个想法是通过使用的foreach和取消了违规的价值时，我发现它的阵列循环，但是这似乎并没有引用原始数组，只是创建的循环变量。

感谢。

解决方案

 的foreach（$数组的$ id =＆GT; $数据）{
    的foreach（$数据，$指数=＆GT; $ offending_val）{
         如果（$ offending_val === 100）{
            未设置（$数组[$ ID] [$指数]）;
         }
    }
}
 

Using PHP I'm trying to remove an element from an array based on the value of the element.

For example with the following array:

Array
(
    [671] => Array
        (
            [0] => 1
            [1] => 100
            [2] => 1000
        )
    [900] => Array
        (
            [0] => 15
            [1] => 88
        }
)

I'd like to be able to specify a value of on of the inner arrays to remove. For example if I specified 100 the resulting array would look like:

Array
(
    [671] => Array
        (
            [0] => 1
            [2] => 1000
        )
    [900] => Array
        (
            [0] => 15
            [1] => 88
        }
)

My first thought was to loop through the array using foreach and unset the "offending" value when I found it, but that doesn't seem to reference the original array, just the loop variables that were created.

Thanks.

解决方案

foreach($array as $id => $data){
    foreach($data as $index => $offending_val){
         if($offending_val === 100){
            unset($array[$id][$index]);
         }
    }
}

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