PHP trim() Function Usage and Example

　 　PHP String Function Manual

　 　 The trim() function is used to remove whitespace characters (or other specified characters) at the beginning and end of the string

Syntax

trim(string,charlist)

Definition and Usage

It is used to delete spaces and other characters

Related Functions:

• ltrim() - Remove whitespace characters at the beginning of the string or other predefined characters.

• rtrim() - Remove whitespace characters at the end of the string or other predefined characters.

Return Value

It returns the modified string

Parameter

Online example

Try the following example

<?php
　　　　　
　　　　//Delete spaces at both ends of the string
　　　　$str　=　"　Hello　World!　";
　　　　echo　trim($str)　.　"<br>";
　　　　//Remove 'www.' from the domain name
　　　　$input　=　"www.oldtoolbag.com";
　　　　echo　trim($input,"www.")　.　"<br>";
　　　　//Remove newline characters (\n) from both sides of the string:
　　　　$str　=　"\n\n\nHello　World!\n\n\n";
　　　　echo　"Without using trim:　"　.　$str;
　　　　echo　"<br>";
　　　　echo　"After using trim:　"　.　trim($str);
?>

Output result

Hello　World!
oldtoolbag.com
Without using trim:　
Hello　World!
After using trim:　Hello　World!

PHP String Function Manual