How to combine multiple one-dimensional arrays into a two-dimensional array through PHP-PHP Tutorial-php.cn

How to combine multiple one-dimensional arrays into a two-dimensional array through PHP

jacklove

Release： 2023-03-30 20:58:01

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During the development process, data needs to be organized, and one of the most common operations is to integrate various data into a set of data. This article provides a method for combining multiple one-dimensional arrays into a two-dimensional array, and provides complete code and demonstrations.

The code of the combination method is as follows. Since function variable parameters need to be used, PHP version 5.6 or above is required.

<?php/**
 * 将多个一维数组合拼成二维数组
 *
 * @param  Array $keys 定义新二维数组的键值，每个对应一个一维数组
 * @param  Array $args 多个一维数组集合
 * @return Array
 */function array_merge_more($keys, ...$arrs){

    // 检查参数是否正确
    if(!$keys || !is_array($keys) || !$arrs || !is_array($arrs) || count($keys)!=count($arrs)){        return array();
    }    // 一维数组中最大长度
    $max_len = 0;    // 整理数据，把所有一维数组转重新索引
    for($i=0,$len=count($arrs); $i<$len; $i++){        $arrs[$i] = array_values($arrs[$i]);        if(count($arrs[$i])>$max_len){            $max_len = count($arrs[$i]);
        }
    }    // 合拼数据
    $result = array();    for($i=0; $i<$max_len; $i++){        $tmp = array();        foreach($keys as $k=>$v){            if(isset($arrs[$k][$i])){                $tmp[$v] = $arrs[$k][$i];
            }
        }        $result[] = $tmp;
    }    return $result;

}?>

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1. Combine multiple one-dimensional arrays into two-dimensional arrays

<?php$arr1 = array(&#39;fdipzone&#39;, &#39;terry&#39;, &#39;alex&#39;);$arr2 = array(18, 19, 20);$arr3 = array(&#39;programmer&#39;, &#39;designer&#39;, &#39;tester&#39;);$keys = array(&#39;name&#39;,&#39;age&#39;,&#39;profession&#39;);$result = array_merge_more($keys, $arr1, $arr2, $arr3);

print_r($result);?>

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Output:

Array(
    [0] => Array
        (
            [name] => fdipzone
            [age] => 18
            [profession] => programmer
        )

    [1] => Array
        (
            [name] => terry
            [age] => 19
            [profession] => designer
        )

    [2] => Array
        (
            [name] => alex
            [age] => 20
            [profession] => tester
        )

)

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2. Extract multiple two-dimensional arrays Part of the data is combined into a two-dimensional array

<?php$arr1 = array(    array(&#39;name&#39;=>&#39;fdipzone&#39;),    array(&#39;name&#39;=>&#39;terry&#39;),    array(&#39;name&#39;=>&#39;alex&#39;),
);$arr2 = array(    array(&#39;age&#39;=>18),    array(&#39;age&#39;=>19),    array(&#39;age&#39;=>20),
);$arr3 = array(    array(&#39;profession&#39;=>&#39;programmer&#39;),    array(&#39;profession&#39;=>&#39;designer&#39;),    array(&#39;profession&#39;=>&#39;tester&#39;),
);$arr1 = array_column($arr1, &#39;name&#39;);$arr2 = array_column($arr2, &#39;age&#39;);$arr3 = array_column($arr3, &#39;profession&#39;);$keys = array(&#39;name&#39;,&#39;age&#39;,&#39;profession&#39;);$result = array_merge_more($keys, $arr1, $arr2, $arr3);

print_r($result);?>

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Output:

Array(
    [0] => Array
        (
            [name] => fdipzone
            [age] => 18
            [profession] => programmer
        )

    [1] => Array
        (
            [name] => terry
            [age] => 19
            [profession] => designer
        )

    [2] => Array
        (
            [name] => alex
            [age] => 20
            [profession] => tester
        )

)

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