[英]Why does in_array return false for this search?
Why does below code return false
?为什么下面的代码返回
false
? It ought to return true.它应该返回true。
in_array(
'/wp-content/uploads/2020/08/SJ-R42027-CZ-SG-1-scaled-1.jpg',
[
'https://example.com/wp-content/uploads/2020/08/SJ-R42027-CZ-SG-1-scaled-1.jpg'
],
false
)
It is correct behavior.这是正确的行为。
There is no string /wp-content/uploads/2020/08/SJ-R42027-CZ-SG-1-scaled-1.jpg
in that array.该数组中没有字符串
/wp-content/uploads/2020/08/SJ-R42027-CZ-SG-1-scaled-1.jpg
。
I think you have misunderstood the "strict" argument.我认为您误解了“严格”的说法。 Eg.
例如。
in_array('3', [1, 2, 3, 4], true); // ==> false because the string '3' !== 3
However if you don't pass a third argument or pass it false
:但是,如果您不传递第三个参数或传递
false
:
in_array('3', [1, 2, 3, 4]); // ==> true because '3' == 3
in_array('3', [1, 2, 3, 4], false); // ==> true because '3' == 3
However in your case the strings don't match even with loose ==
:但是,在您的情况下,即使使用松散的
==
,字符串也不匹配:
'/wp-content/uploads/2020/08/SJ-R42027-CZ-SG-1-scaled-1.jpg' ==
'https://example.com/wp-content/uploads/2020/08/SJ-R42027-CZ-SG-1-scaled-1.jpg'
// ==> false
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