Shulou(Shulou.com)06/01 Report--

This article mainly introduces "how php removes the specified characters on both sides of the string". In daily operation, I believe many people have doubts about how php removes the specified characters on both sides of the string. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts of "how php removes the specified characters on both sides of the string". Next, please follow the editor to study!

Php to remove the specified characters on both sides of the string: 1, use the trim () function, syntax "trim (string,' specified character')"; 2, use ltrim () and rtrim () function, syntax "rtrim (string,' left specified character'), 'right specified character')".

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

Php removes the specified characters from both sides of the string

1. Use the trim () function

Example: remove commas from both sides of a string

The trim () function removes white space characters or other predefined characters from both sides of the string.

Syntax:

The trim (string,charlist) parameter is required to describe string. Specifies the string to check. Charlist is optional. Specifies which characters are removed from the string. If this parameter is omitted, all the following characters are removed:

"\ 0"-NULL

"\ t"-Tab character

"\ n"-Line break

"\ x0B"-Vertical Tab

"\ r"-enter

""-Spac

Return value: returns the modified string.

2. Use the ltrim () and rtrim () functions

Ltrim ()-removes white space characters or other predefined characters on the left side of the string.

Rtrim ()-removes white space characters or other predefined characters to the right of the string.

Example:

At this point, the study on "how php removes the specified characters on both sides of the string" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.