Php trim () function example

Php trim () function example

The php trim () function removes white spaces or other pre-defined characters on both sides of the string. This article introduces the usage and examples of the php trim () function to coders, for more information, see.

Definition and usage

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

Related functions:

• Ltrim ()-removes white spaces or other predefined characters from the left of the string.
• Rtrim ()-removes spaces or other predefined characters from the right of the string

 

Syntax

trim(string,charlist)

 

Parameters	Description
String	Required. Specifies the string to be checked.
Charlist	Optional. Specifies which characters are deleted from the string. If omitted, all the following characters are removed: "\ 0"-NULL "\ T"-Tab "\ N"-line feed "\ X0B"-vertical Tab "\ R"-press ENTER ""-Space

 

Technical details

Return Value:	Returns the modified string.
PHP version:	4 +
Update log:	In PHP 4.1CharlistParameters.

 

Instance

Remove spaces on both sides of the string:

<? Php $ str = "Hello World! "; Echo" trim: ". $ str; echo" <br> "; echo" trim: ". trim ($ str);?>

Online operation

The HTML output of the above Code is as follows (check the source code ):

<! DOCTYPE html> <body> trim: Hello World is not used! <Br> use trim: Hello World! </Body> 

The browser output of the above Code is as follows:

Do not use trim: Hello World! Use trim: Hello World!

Address: http://www.manongjc.com/article/827.html

Related reading:

The php trim () function removes spaces or other predefined characters on both sides of the string.

The php rtrim () function removes the white space or other predefined characters on the right of the string.

The php trim () function removes spaces or other predefined characters on both sides of the string.