搜索在PHP中字符串的字符串或部分 [英] Search for a string or part of string in PHP

问题描述

我做在PHP中一个非常小的网上商店应用程序。所以我在PHP地图的数组。我想搜索数组中的字符串（产品）。我看着在PHP array_search和它似乎只查找精确匹配。难道你们知道一个更好的方式来做到这一点的功能？由于这是什么我实际上做一个非常小的一部分，我希望有内置的东西。任何想法？

I am doing a very small online store application in PHP. So I have an array of maps in PHP. I want to search for a string (a product) in the array. I looked at array_search in PHP and it seems that it only looks for exact match. Do you guys know a better way to do this functionality? Since this is a very small part of what I am actually doing, I was hoping that there was something built in. Any ideas?

谢谢！

编辑：数组包含产品的格式为：

The array contains "products" in this format:

[6] => SimpleXMLElement Object
    (
        [@attributes] => Array
            (
                [id] => 2000-YM
            )

        [Name] => Team Swim School T-Shirt
        [size] => YM
        [price] => 15
        [group] => Team Clothing
        [id] => 2000-YM
    )

[7] => SimpleXMLElement Object
    (
        [@attributes] => Array
            (
                [id] => 3000-YS
            )

        [Name] => Youth Track Jacket
        [size] => YS
        [price] => 55
        [group] => Team Clothing
        [id] => 3000-YS
    )

所以我想知道我可以做一个搜索，如团队，它会返回我这里看到的第一个项目。我立足于名称搜索（这同样是只是一些很小）。我明白，我能找到完全匹配的字符串，我只是停留在最好的结果，如果它不能找到确切的项目。效率是好的，但不是必需的，因为我只有50项所以即使我用一个慢的算法也不会花费太多时间。

So I was wondering I can do a search such as "Team" and it would return me first item seen here. I am basing the search on the Name (again this is just something small). I understand that I can find the exact string, I am just stuck on the "best results" if it cannot find the exact item. Efficiency is nice but not required since I only have about 50 items so even if I use a "slow" algorithm it won't take much time.

推荐答案

array_filter 允许您指定一个自定义函数来完成搜索。在你的情况，使用 strpos一个简单的函数（）来检查，如果你的搜索字符串是present：

array_filter lets you specify a custom function to do the searching. In your case, a simple function that uses strpos() to check if your search string is present:

function my_search($haystack) {
    $needle = 'value to search for';
    return(strpos($haystack, $needle)); // or stripos() if you want case-insensitive searching.
}

$matches = array_filter($your_array, 'my_search');

另外，你可以使用一个匿名函数来帮助prevent命名空间的污染：

Alternatively, you could use an anonymous function to help prevent namespace contamination:

$matches = array_filter($your_array, function ($haystack) {
    return(strpos($haystack, $needle));
});

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