搜索包含字符串的 PHP 数组元素

问题描述

$example = array('An example','Another example','Last example');

如何在上述数组中对单词Last"进行松散搜索?

How can I do a loose search for the word "Last" in the above array?

echo array_search('Last example',$example);

如果指针完全匹配值中的所有内容，上面的代码只会回显值的键，这是我不想要的.我想要这样的东西:

The code above will only echo the value's key if the needle matches everything in the value exactly, which is what I don't want. I want something like this:

echo array_search('Last',$example);

如果值包含单词Last"，我希望值的键回显.

And I want the value's key to echo if the value contains the word "Last".

推荐答案

要查找符合您搜索条件的值，您可以使用 array_filter 函数:

To find values that match your search criteria, you can use array_filter function:

$example = array('An example','Another example','Last example');
$searchword = 'last';
$matches = array_filter($example, function($var) use ($searchword) { return preg_match("/\b$searchword\b/i", $var); });

现在 $matches 数组将只包含原始数组中包含单词 last(不区分大小写)的元素.

Now $matches array will contain only elements from your original array that contain word last (case-insensitive).

如果你需要找到符合条件的值的键，那么你需要遍历数组:

If you need to find keys of the values that match the criteria, then you need to loop over the array:

$example = array('An example','Another example','One Example','Last example');
$searchword = 'last';
$matches = array();
foreach($example as $k=>$v) {
    if(preg_match("/\b$searchword\b/i", $v)) {
        $matches[$k] = $v;
    }
}

现在数组 $matches 包含来自原始数组的键值对，其中值包含(不区分大小写)单词 last.

Now array $matches contains key-value pairs from the original array where values contain (case- insensitive) word last.

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