How to use the rtrim () function of php to delete characters

This article introduces the knowledge about "how to delete characters with php's rtrim() function". In the actual case operation process, many people will encounter such difficulties. Next, let Xiaobian lead you to learn how to deal with these situations! I hope you can read carefully and learn something!

1. Concept

The rtrim() function removes white space or other predefined characters from the right side of a string.

2. Grammar

rtrim(string,charlist)

3. Parameters

string Required. Specifies the string to convert.

Charlist is optional. Specifies which characters to remove from a string.

4. Examples

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