php 不区分大小写的数组搜索
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Case-insensitive array search
提问by Gowri
I have an array like this:
我有一个这样的数组:
$array = Array ( 0 => 'oooo',
1 => 'no',
2 => 'mmmm',
3 => 'yes' );
I'd like to search for a word "yes". I know about array_search()
, but I'd like to match "yes", "Yes" and "YES" as well.
我想搜索一个词“是”。我知道array_search()
,但我也想匹配“是”、“是”和“是”。
How can I do this?
我怎样才能做到这一点?
回答by Halil ?zgür
array_search(strtolower($search), array_map('strtolower', $array));
回答by brunohdaniel
You can use in_array()
instead of array_search()
.
您可以使用in_array()
代替array_search()
.
$response = in_array('yes', array_map('strtolower', $array));
回答by Ashley
Edit: Sorry, I see it's for values, see: http://php.net/manual/en/function.array-change-key-case.php#88648
编辑:抱歉,我看到它是用于值的,请参阅:http: //php.net/manual/en/function.array-change-key-case.php#88648
For keys:
对于钥匙:
$a = array('YES', 'yes', 'Yes');
$b = array_change_key_case($a, CASE_LOWER);
$f = array_search(strtolower($search), $b);