How to remove spaces before and after a string in php

How to remove spaces before and after a string in php: You can use the php built-in function trim() to achieve this. The trim() function is used to remove blank characters or other predefined characters on both sides of a string, for example: [trim($str,"Hed!")].

#trim() function removes whitespace characters or other predefined characters on both sides of a string.

(Recommended tutorial: php graphic tutorial)

Syntax:

trim(string,charlist)

Parameter introduction:

string Required. Specifies the string to check.

charlist Optional. Specifies which characters are removed from a string. If this parameter is omitted, all of the following characters are removed:

"\0" - NULL

"\t" - Tab

"\n" - Newline

"\x0B" - vertical tab

"\r" - carriage return

" " - space

(Video tutorial recommendation: php video tutorial)

Implementation code:

";
echo trim($str,"Hed!");
?>

Run result:

Hello World!
llo Worl

The above is the detailed content of How to remove spaces before and after a string in php. For more information, please follow other related articles on the PHP Chinese website!