Php case-sensitive conversion function _ PHP Tutorial

Converts uppercase and lowercase letters in php. Share the common functions for converting uppercase and lowercase letters in php programming. 1. convert a string to a lower-case strtolower (): This function converts all the characters of the passed string parameter to a common function that converts uppercase and lowercase letters in php programming.

1. convert string to lowercase
Strtolower (): This function converts all characters of the input string parameter to lowercase, and places the string back in a small form.

2. convert characters into uppercase letters
Strtoupper (): This function is opposite to the strtolower function. it converts all characters of the passed character parameter to uppercase and returns the string in uppercase. the usage is the same as that of strtolowe.

3. convert the first character of the string to uppercase.
Ucfirst (): This function is used to change the first character of a string to uppercase. This function returns the first character in uppercase. the usage is the same as that of strtolowe.

4. convert the first character of each word in the string to uppercase.
Ucwords (): This function converts the first character of each word in the input string to uppercase. for example, "hello world". after this function is processed, "Hello Word" is returned ". the usage is the same as that of strtolowe.

The above is a commonly used string-to-write conversion function in php. for specific examples, refer to: php case-to-case conversion examples to summarize this article.

If any problem occurs during use, refer to the article: Summary of php case sensitivity issues to find the correct solution.

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Bytes. 1. convert the string to lower-case strtolower (): This function converts all characters of the passed string parameter...