How can I remove specific characters from the end of a string in PHP?

Removing Specific Ending Characters in PHP

In PHP, you may encounter a situation where you need to remove particular characters from the end of a string. One common scenario is when you want to eliminate trailing periods or other specific characters that may not be necessary.

Consider the following example:

$string = "something here.";
$output = 'something here';

Here, we have a string $string with a period at the end. We want to remove this period if it exists, resulting in the output $output without the trailing period.

To achieve this, we can utilize the rtrim() function. This function takes two parameters: the string to trim and the characters to remove.

$output = rtrim($string, '.');

In this case, we pass $string as the string to trim and '.' as the character to remove. The rtrim() function will remove any trailing periods from $string and assign the trimmed result to $output.

(Reference: [rtrim on PHP.net](https://www.php.net/manual/en/function.rtrim.php))

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