Remove the last character from a string in PHP

In this tutorial, you will learn how to remove the last character from a string in php. Here we explain to you three methods to do this task.

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Different way to remove the last character from a string

1. rtrim function
2. substr function
3. substr_replace function

Method 1: rtrim function

Using the `rtrim` function, we can remove the last specific characters from the string. By default this function removes whitespace from the end of string.

Syntax:

rtrim($string, 'x');

Example:

$string = "Welcome to Cluemediator !";
echo $string . "\n";

$newString = rtrim($string, "!");
echo $newString . "\n";

// Output:
Welcome to Cluemediator !
Welcome to Cluemediator

In some cases, the `rtrim` function will not work for us because it removes all specific characters from the end of string. Let's be clear with an example.

$string = "This is a test message..";
echo $string . "\n";

$newString = rtrim($string,".");
echo $newString . "\n";

// Output:
This is a test message..
This is a test message

Here, if we want to remove only single `.` character from the end of the string but rtrim function removes all `.` characters. In this case we can use the `substr` function or `substr_replace` function of php.

Method 2: substr function

We can use the `substr` function to remove last characters from the string.

Syntax:

substr($string, 0, -1);

Example:

$string = "Welcome to Cluemediator !";
echo $string . "\n";

$newString = substr($string, 0, -1);
echo $newString . "\n";

// Output:
Welcome to Cluemediator !
Welcome to Cluemediator

Another example where you can see its remove only one character if more than one same characters are available at the end of string and want to remove only one of them last character.

$string = "This is a test message..";
echo $string . "\n";

$newString = substr($string, 0, -1);
echo $newString . "\n";

// Output:
This is a test message..
This is a test message.

Method 3: substr_replace function

Also, you can use the `substr_replace` function to remove the last character from a string.

Syntax:

substr_replace($string, "", -1);

Example:

$string = "Welcome to Cluemediator !";
echo $string . "\n";

$newString = substr_replace($string, "", -1);
echo $newString . "\n";

// Output:
Welcome to Cluemediator !
Welcome to Cluemediator

That’s it for today.
Thank you for the reading. Happy Coding!