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PHP has several ways that help us manipulate strings, such as user inputs, database values, or any other form of data.

Sometimes, you may have a specific long URL and need to remove the last slash from it. Fortunately, PHP provides several methods to do this task.

In the following section, you will learn how to use&nbsp;<code><code class="inline-code">substr_replace</code></code>&nbsp;to remove a part from the string. Let’s get started.

Removing the Last Character using the "substr_replace"

To do this task, there are three important arguments that should be passed into&nbsp;<code><code class="inline-code">substr_replace</code></code>. They are as follows:

In this example, we removed the ‘?’ mark from the URL. So, in the first argument, we passed the original string into the callback and then provided an empty value.

Additionally, we specified the start position; if it is negative, it will start from the end of the string.

Let’s move on to the section below to learn another way to delete the last character using the&nbsp;<code><code class="inline-code">substr</code></code>&nbsp;predefined function in PHP.

Removing the Last Character with&nbsp;substr

You can achieve the same result using the&nbsp;<code><code class="inline-code">substr</code></code>&nbsp;function to remove the last character from a string. Here is an example:

In this example,&nbsp;<code><code class="inline-code">substr</code></code>&nbsp;extracts a portion of the original string, starting from the beginning (<code>0</code>) and excluding the last character (<code><code class="inline-code">-1</code></code>).

This effectively removes the last character from the original string. After that, the altered text is repeated, and “Hello, World” should appear without the quotation mark.

Anyway, in the following section, I’ll explain how&nbsp;<code><code class="inline-code">mb_substr</code></code>&nbsp;works. Let’s move on.

Using&nbsp;mb_substr&nbsp;to Remove the Last Character from the String

<code><code class="inline-code">mb_substr</code></code>&nbsp;is a multi-byte safe version of&nbsp;<code>substr</code>&nbsp;in PHP, which is used for extracting parts of a string. To remove the last character from a string using&nbsp;<code><code class="inline-code">mb_substr</code></code>, you can follow the below example:

It prints the URL without the last character, which, in this case, is the asterisk (*). The&nbsp;<code><code class="inline-code">mb_substr</code></code>&nbsp;function is used to get a substring that includes all characters from the beginning of the string (position 0) to the second-to-last character (position -1).

Anyway, let’s understand how to achieve the same task using rtrim in PHP.

Removing the Last Character with&nbsp;rtrim&nbsp;in PHP

The&nbsp;<code><code class="inline-code">rtrim()</code></code>&nbsp;function in PHP is primarily used to remove whitespace or other characters from the end of a string. However, it can also be employed to remove a specific character by providing it as the second argument.

In this case,&nbsp;<code><code class="inline-code">rtrim($originalString, '!')</code></code>&nbsp;removes the exclamation mark from the end of the string.

Hoping this article has been helpful, let’s summarize it.

PHP offers developers a range of methods to remove the last character from strings, providing adaptability based on specific requirements. The exploration of these techniques has shed light on the diversity of options available.

Beginning with the&nbsp;substr_replace&nbsp;function, this method effectively replaces the last character with an empty string. This approach is particularly useful when a straightforward removal is desired.

Transitioning to another common technique, the&nbsp;substr&nbsp;function allows developers to extract a substring starting from the beginning and excluding the last character. This provides a concise way to eliminate the trailing character from a string.

For those working with multi-byte character sets, the&nbsp;mb_substr&nbsp;function emerges as a versatile alternative. This function ensures compatibility with multi-byte characters, offering a reliable means of removing the last character from a string.

Lastly, we considered the use of&nbsp;rtrim&nbsp;in a novel context. While traditionally employed to eliminate whitespace, it can be repurposed to remove a specific character from the end of a string. This flexibility enhances its utility in diverse string manipulation scenarios.

Thank you for reading, You can find more PHP tutorials&nbsp;<a href="https://flatcoding.com/tutorials/php-programming/" rel="" target="_blank">here</a>. or Visit&nbsp;<a href="https://www.php.net/manual/en/index.php" target="_blank" rel="noreferrer noopener nofollow">PHP Manual</a>.

Montasser Mossallem

You can remove the last character from a PHP string using 4 ways: 'substr_replace', 'substr', 'mb_substr', and 'rtrim'. Here is an example..

How to Remove the Last Character from a PHP String

Remove the Last Char

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