strupper php

PHP tips [to] PHP tips seem to be. most of the time, we use strtolower or strtoupper to compare strings, and then judge whether they are equal. In this case, the conversion is required twice. Most of the time, we are for character set conversion

PHP tips [to] PHP tips seem to be. most of the time, we use strtolower or strtoupper to compare strings, and then judge whether they are equal. In this case, the conversion is required twice. Most of the time, we are for character set conversion

[PHP source code reading] in strtolower and strtoupper function string operation functions, string case-sensitivity conversion is also a commonly used function, and its underlying implementation is relatively simple. let's take a look at it. I

Just like this, you need to convert two times. Most of the time, we are for the character set conversion when this is the case, such as the determination of the parameters passed in whether Utf-8, the 5 characters of the wording, can be more, such

It just needs to be converted two times. Most of the time, we are on the character set conversion time will be so, such as judging the parameters passed in whether Utf-8, the 5 characters of the writing, but more, such as utf-8,utf-8,utf-8, then how

It just needs to be converted two times. Most of the time, we are on the character set conversion time will be so, such as judging the parameters passed in whether Utf-8, the 5 characters of the writing, but more, such as utf-8,utf-8,utf-8, then how

Just like this, you need to convert two times. Most of the time, we are for the character set conversion when this is the case, such as the determination of the parameters passed in whether Utf-8, the 5 characters of the wording, can be more, such