Question

我有一个包含产品的数组，我想搜索重复的名称并增加重复的值我试图创建一个空数组并将所有标题值键[0]推送到它，然后我发现我对每个具有array_count_values的键[0]的值有多少重复。
这是我的阵列;

$products=Array
(
    [0] => Array
        (
            [0] => 'Intel I3',
            [1] => 146,
            [2] => 'intel-i3'
        ),

    [1] => Array
        (
            [0] => 'Intel I3',
            [1] => 146,
            [2] => 'intel-i3'
        ),
    [2] => Array
        (
            [0] => 'Intel I3',
            [1] => 250,
            [2] => 'intel-i3'
        ),
    [3] => Array
        (
            [0] => 'AMD graphic',
            [1] => 146,
            [2] => 'amd-graphic'
        )
);

我希望这个结果增加1。

我怎样才能得到这个结果？

$products=Array
(
    [0] => Array
        (
            [0] => 'Intel I3',
            [1] => 146,
            [2] => 'intel-i3'
        ),

    [1] => Array
        (
            [0] => 'Intel I3_1',
            [1] => 146,
            [2] => 'intel-i3'
        ),
    [2] => Array
        (
            [0] => 'Intel I3_2',
            [1] => 250,
            [2] => 'intel-i3'
        ),
    [3] => Array
        (
            [0] => 'AMD graphic',
            [1] => 146,
            [2] => 'amd-graphic'
        )
);

Answer 1

$titleCounts = array();

foreach ($products as &$product) {

    if (!isset($titleCounts[$product[0]])) {
        $titleCounts[$product[0]] = 0;
    } else {
        $titleCounts[$product[0]]++;
        $product[0] = ($product[0].'_'.$titleCounts[$product[0]]);
    }
}

你可以在这里看到这个工作：

http://ideone.com/4xoGgP

Answer 2

<?php
$counter = [];
$i = 0;
foreach($products as $product){
    $counter[] = $product[2];
    $vals = array_count_values($counter);
    $current_number = $vals[$product[2]];
    if($current_number)
        $products[$i][0] .= '_'.$current_number;
    $i++;
}

应该这样做。

Answer 3

经过测试，确实有效。

$tmpArray = array();

foreach ($products as &$product) {
    $name = $product[0];
    if (array_key_exists($name, $tmpArray)) {
        $product[0] = $name . '_' . $tmpArray[$name];
        $tmpArray[$name]++;
    } else {
        $tmpArray[$name] = 1;
    }
}
unset($product);

PHP多维数组增量重复

3 个答案: