英文:
Filtering and searching for strings by array_filter() function
问题
通过array_filter()函数，我可以筛选出年龄超过40岁的人，这返回了正确的答案。但是，如果我想对人们的姓名进行筛选，通过strpos()函数这个方法无法正常工作。例如，如果我想筛选包含词组sapi的姓名，答案应该包括sapi和rahmatsapi，但实际答案不是这样的。我尝试了其他函数，如strpbrk()函数，但它们也没有给出正确的答案。
如果我一定要使用array_filter()函数和字符串函数，正确的方法是什么？如果字符串函数没有这样的功能，有什么替代方案吗？谢谢。
英文:
I have a list of people's names and ages. Through function array_filter(), I can filter people who are over 40 years old, which returns the correct answer
But if I want to put a filter for the names of people, this issue does not work properly through the Strpos() function, for example, if I want to write the phrase sapi, the answer should include the names sapi and rahmatsapi, but the answer is not like that. I tried other functions such as the strpbrk() function, but they did not give the right answer.
$listL = [['name' => 'sapi', 'age' => 49],['name' => 'rahmatsapi', 'age' => 42],['name' => 'neko', 'age' => 39]];$filterUser = array_filter($listL, fn($user) => $user['age'] > 40);$filterUser = array_filter($listL, fn($user) => strpos($user['name'], 'sapi'));var_dump($filterUser);
If I definitely want to use array_filter()function and string functions, what is the correct way? If string functions do not have such capability, what is the alternative solution?
Thanks
答案1
得分: 0
在我的测试中，它工作正常。我相信这是因为 strpos 需要使用 === 来检查，而不是 ==。
$listL = [['name' => 'sapi', 'age' => 49],['name' => 'rahmatsapi', 'age' => 42],['name' => 'neko', 'age' => 39]];$filterUserAge = array_filter($listL, function ($user) {if ($user['age'] > 40) {return $user;}});$filterUserName = array_filter($listL, function ($user) {$pos = strpos($user['name'], 'sapi');$achou = false;if ($pos === false) {return $achou;} else {$achou = true;return $user;}});print_r($filterUserName);
祝好！
英文:
here in my test it work. I believe that is cause strpos need be check with === rather then ==
$listL = [['name' => 'sapi', 'age' => 49],['name' => 'rahmatsapi', 'age' => 42],['name' => 'neko', 'age' => 39]];$filterUserAge = array_filter($listL, function ($user){if($user['age'] > 40){return $user;}});$filterUserName = array_filter($listL, function($user){$pos = strpos($user['name'], 'sapi');$achou =false;if($pos === false){return $achou;}else{$achou = true;return $user;}});print_r($filterUserName);
Regards
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