使用特殊字符时，stripos返回false [英] stripos returns false when special characters is used

问题描述

我正在使用 stripos函数检查字符串是否位于其中另一个字符串，忽略任何情况.

I am using the stripos function to check if a string is located inside another string, ignoring any cases.

问题出在这里

stripos("ø", "Ø")

返回假.虽然

stripos("Ø", "Ø")

返回true.

如您所见，在这种情况下，该函数看起来 NOT 不区分大小写 .

As you might see, it looks like the function does NOT do a case-insensitive search in this case.

该功能在使用Ææ和Åå等字符时也存在相同的问题.这些是丹麦语字符.

The function has the same problems with characters like Ææ and Åå. These are Danish characters.

推荐答案

请改用 mb_stripos() .它支持字符集，可以处理多字节字符集. stripos()是过去的美好时光，当时只有ASCII并且所有字符仅为1个字节.

Use mb_stripos() instead. It's character set aware and will handle multi-byte character sets. stripos() is a holdover from the good old days when there was only ASCII and all chars were only 1 byte.

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