How to remove last character from string using PHP?

Method1: using substr() function

This function is used to return a part of a string or substring from a string, starting from a given position.

Syntax - 

substr(string,start,length)

The string is the required parameter. It should be a string datatype, start specifies where to start in the string and length is an optional parameter. If it is positive, the returned string contains the length characters from the beginning, and if it is negative, the returned string contains the length characters from the end of the string.

Example - 

<?php 

$str1 = "Good Morning!";

echo "Original string: " . $str1 . "<br/>";
echo "Updated string: " . substr($str1, 0, -1) . "<br/>";
?>

 Output - 

Original string: Good Morning!
Updated string: Good Morning

Method 2: using mb_substr() function

It returns the part of the string. It performs a multi-byte safe substr() operation based on the number of characters. The position is counted from the beginning of the string.

Syntax - 

mb_substr ( string $str , int $start [, int $length = NULL [, string $encoding = mb_internal_encoding() ]] )

Here, the $str is the string to extract the substring from, $start specifies where to start in the string, $length specifies the maximum number of characters to use from $str.

Example - 

<?php 

$str1 = "Good Morning!";

echo "Original string: " . $str1 . "<br/>";
echo "Updated string: " . mb_substr($str1, 0, -1) . "<br/>";
?>

 Output - 

Original string: Good Morning!
Updated string: Good Morning