PHP Letter Case Conversion Function _php Tutorial

Share, in PHP programming, the usual functions of converting letters to case.

1. Convert a string to lowercase
Strtolower (): This function converts all characters passed in the string argument to lowercase and puts the string back in a small form

2. Turn characters into uppercase
Strtoupper (): This function, in contrast to the Strtolower function, converts all characters of the passed character argument to uppercase and returns the string in uppercase. Usage is the same as Strtolowe ().

3. Convert the first character of a string to uppercase
Ucfirst (): The function is to change the first character of a string to uppercase, which returns a string with the first character capitalized. Use the same as Strtolowe ().

4. Convert the first character of each word in a string to uppercase
Ucwords (): This function capitalizes the first character of each word of the passed-in string. Like "Hello World", after the function is processed, "Hello Word" is returned. Usage is the same as Strtolowe ().

The above is a commonly used in PHP string write conversion function, the specific use case can be referred to: PHP letter Case Conversion Example Summary of this article.

If there is a problem with the use of the process, you can refer to the article: PHP Case-sensitive summary of the problem in order to find the correct solution.

Hereby share to help friends who are destined to do so.

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