我有一个包含单词和句子的字符串数组。
例如：
array("dog","cat","the dog is running","some other text","some","text")
我想删除重复的单词，只留下唯一的单词。即使在句子中，我也想删除这些词。
结果应如下所示：
array("dog","cat","the is running","other","some","text")
我尝试了该array_unique功能，但没有用。
您可以使用array_unique带有爆炸和的after 循环array_push：
$res = [];
foreach($arr as $e) {
array_push($res, ...explode(" ", $e));
}
print_r(array_unique($res));
参考：array_push，explode，array-unique
现场示例：3v4l
如果你想保留句子使用：
$arr = array("dog","cat","the dog is running","some other text","some","text");
// sort first to get the shortest sentence first
usort($arr, function ($a, $b) {return count(explode(" ", $a)) - count(explode(" ", $b)); });
$words = [];
foreach($arr as &$e) {
$res[] = trim(strtr($e, $words)); //get the word after swapping existing
foreach(explode(" ", $e) as $w)
$words[$w] =''; //add all new words to the swapping array with value of empty string
}
本文收集自互联网，转载请注明来源。
如有侵权，请联系 [email protected] 删除。
我来说两句