在每个数组上检查相同的单词

Question

我想检查字符串在比较2个不同的数组时是否包含相同的单词。如果每个数组中都有相同的单词它会显示多维数组

中每个数组中有多少个相同的单词

数组一为普通数组类型，数组二为多维数组

数组1 :

Array
(
    [0] => royalty
    [1] => free
    [2] => picture
)

数组2 :

Array
(
    [0] => Array
        (
            [0] => Affordable and search from millions of royalty free picture
        )
    [1] => Array
        (
            [0] => from millions of royalty picture
        )
    [2] => Array
        (
            [0] => Provides free picture upload and hosting
        )
    [3] => Array
        (
            [0] => Post your picture here Get permanent links
        )
    [4] => Array
        (
            [0] => Choose your own unique username to access image
        )
)

结果:

Array
(
    [0] => Array
        (
            [0] => 3
        )
    [1] => Array
        (
            [0] => 2
        )
    [2] => Array
        (
            [0] => 2
        )
    [3] => Array
        (
            [0] => 1
        )
    [4] => Array
        (
            [0] => 0
        )
)

从上面的例子中，数组包含的每个单词的版税免费图片将显示在多维数组

中每个单词的相同数量

我正在尝试使用strcasecmp()，但它只是给我0个结果，如果两个字符串包含相同的单词，我认为它不能给出正确的结果字符串与这么多的单词。

Answer 1

拆分字符串并查找与搜索词数组的交集

foreach($array2 as &$item)
   $item[0] = count(array_intersect($array1, explode(' ', $item[0])));

Answer 2

最简单的方法可能是循环遍历数组2，并使用strstr()或preg_match

将每个单词与字符串进行比较

像这样(不完整):

foreach($array2 as $sentence){
    foreach($array1 as $word){
        if(strstr($word, $sentence) !== false){
            $wordsFound++;
        }
    }
}