PHP trim() Function

Syntax : trim(string $string, string $characters)

The Php trim() Function is an inbuilt function which removes whitespaces and also the predefined characters from both sides of a string that is left and right.

The Php trim() Function is an inbuilt function which removes whitespaces and also the predefined characters from both sides of a string that is left and right.

$string specifies the string from which the whitespace and predefined characters from left and right are to be removed

$charlist specifies the characters that are to be removed from the string.

lrim() Function removes whitespaces from left side of a string.

rtrim() Function removes whitespaces from right side of a string.

Example 1 :

 
<?php  
$str = "  Welcome Aone Tutorials  "; 
$newstr = trim($str);
echo $newstr;
?>  
Output : 
Welcome Aone Tutorials

Example 2 :

The lrim() function removes whitespace or other predefined characters from the left side of a string.

 
<?php
$str = " Hello World";
echo lrim($str);
//output : Hello World.
?>

Example 3 :

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

 
<?php
$str = "Hello World  ";
echo rrim($str);
//output : Hello World.
?>