Php remove last char in string

PHP: Remove the last character from a string.

In this tutorial, we are going to show you how to remove the last character from a string using PHP.

To do this, we can use either the rtrim function or the substr and mb_substr functions.

Using the rtrim function to remove the last character.

By default, PHP’s rtrim function will strip whitespace from the end of a string.

However, you can also tell it to remove other characters.

Take a look at the following example:

//PHP string $string = "Hello."; //Remove the last character using rtrim $string = rtrim($string, "."); //Results in "Hello" var_dump($string);

In the code snippet above, we used rtrim to remove the full stop from the end of our string.

You can also provide PHP’s rtrim function with multiple characters:

//You can provide the rtrim function //with multiple characters $string = rtrim($string, "!o");

If you use the character mask above, you will see that the string “Hello.” becomes “Hell”.

In certain cases, the rtrim function will not work. For example, what if we wanted to remove the last comma in the string below?

//Example string $string = "test1,test2,test3,,"; //Removing all commas from the //end of a string $string = rtrim($string, ","); //Results in "test1,test2,test3" var_dump($string);

The problem here is that rtrim will remove all instances of the character from the end of the string. In other words, it will remove both of the commas even though we only want to remove one.

In cases like this, we will need to use PHP’s substr function instead.

Using PHP’s substr function to remove the last character.

PHP’s substr function will return a part of a given string. However, you can also use it to remove the last character.

Take the following example:

//Example string $string = "test1,test2,test3,,"; //Remove the last character using substr $string = substr($string, 0, -1); //Results in "test1,test2,test3," var_dump($string);

In the code above, we provided the substr function with three parameters:

1. The string that we want to remove our character from.
2. The $start parameter, which we set to 0, because we want the entire left side of the string.
3. The $length parameter, which we set to -1. By setting the $length parameter to -1, we are basically telling PHP that we want our sub-string to end before the last character. This leaves us with everything except the final character.

Removing special characters from the end of a PHP string.

In certain cases, you might be dealing with special characters from other languages.

When that happens, the regular substr function will not work.

//Example string with a special character $string = "abcdö"; //Attempt to remove the last character $string = substr($string, 0, -1); //Results in the replacement question //mark character or square var_dump($string);

Here, we attempted to remove the German umlaut character from the end of a string. However, this left us with a garbled string that contains question mark replacement characters.

To remove special characters, you will need to use the mb_substr function instead:

//Use mb_substr for special characters. $string = mb_substr($string, 0, -1);

If you change substr to mb_substr, you will see that the special character has been successfully removed.

This is because the mb_substr function performs a multi-byte safe operation.

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How to Remove the Last Character from a String in PHP

While working with PHP, it is often necessary to remove characters from strings.

In this snippet, we are going to show you several PHP functions that allow removing the last character from a particular string.

The First Option is Substr Function

The first option is using the substr function. The syntax of this function is the following:

A simple example of the substr function is illustrated below:

 $string = "Hello World!"; echo "Given string: " . $string . "\n"; echo "Updated string: " . substr($string, 0, -1) . "\n"; ?>

The output will look as follows:

Given string: Hello World! Updated string: Hello World

The Second Option is Substr_replace Function

The second option is using the substr_replace function. Its basic syntax is:

And here is an example of using the substr_replace function:

 $string = "Hello World!"; echo "Given string: " . $string . "\n"; echo "Updated string: " . substr_replace($string, "", -1) . "\n"; ?>

Given string: Hello World! Updated string: Hello World

The Third Option is Rtrim() Function

This function also allows removing the last character of a string.

In this syntax, you can notice “a” character, which should be removed.

So, an example of removing the character will look as follows:

 $string = "Hello World!"; echo "Given string: " . $string . "\n"; echo "Updated string: " . rtrim($string, "!") . "\n"; ?>

And, the output is the following:

Given string: Hello World! Updated string: Hello World

So, in this snippet, we discussed three ways of removing the last character from a string in PHP. These are simple actions that will help you to deal with one of the common issues in PHP.

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PHP Functions : Remove Last Character From String In PHP

To remove last character from a string in php; Through this tutorial, You will learn how to remove last character string form with example.

In PHP, there are different ways to remove the last character from a string, depending on the specific use case and the nature of the string. In this article, you will learn some of the most common methods to achieve this task.

Remove Last Character From String PHP | PHP Functions

• Method 1: Using substr function
• Method 2: Using substr_replace function
• Method 3: Using rtrim() function
• Question:- php remove last character from string if comma?

Method 1: Using substr function

You can use the substr function of php for remove the last character from string in php.

Syntax:

The syntax of subster method is given below:

Example – Method First – substr function

$string = "Hello World!"; echo "Given string: " . $string . "\n"; echo "Updated string: " . substr($string, 0, -1) . "\n";

Output

Given string: Hello World! Updated string: Hello World

In this example, you have assigned the string “Hello World!” to a variable called $string . Then, you have to use the substr() function to extract a substring starting from the first character (position 0) and with a length of -1. The negative value of the length argument tells the function to count from the end of the string instead of the beginning. As a result, the last character is excluded from the substring.

Method 2: Using substr_replace function

You can also use substr_replace for the remove the last character from string in php.

Syntax:

The basic syntax of substr_replace function is:

Example – substr_replace function

$string = "Hello World!"; echo "Given string: " . $string . "\n"; echo "Updated string: " . substr_replace($string ,"",-1) . "\n";

Output

Given string: Hello World! Updated string: Hello World

In this example, you have assigned the string “Hello World!” to a variable called $string . Then, you have used the substr_replace() function to replace the last character with an empty string. The negative value of the third argument tells the function to count from the end of the string. As a result, the last character is replaced with an empty string, effectively removing it from the string.

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Method 3: Using rtrim() function

You can use the PHP rtrim() function to remove the last character from the given string in PHP.

Syntax:

The basic syntax of rtrim() function is:

Here “a” is the character that you want to remove in your string.

Example – rtrim() function

$string = "Hello World!"; echo "Given string: " . $string . "\n"; echo "Updated string: " . rtrim($string, "!") . "\n";

Output

Given string: Hello World! Updated string: Hello World

In this example, you have assigned the string “Hello World!” to a variable called $string . Then, you have used the rtrim() function to remove the exclamation mark from the end of the string. As a result, the last character is removed, and the output is “Hello World”.

Question:- php remove last character from string if comma?

Answer:- If you have a comma separeted string in php and you want to remove last character from string if comma or remove last comma from string PHP, so you can use PHP rtrim() function like below:

$string = "remove comma from end of string php,"; echo "Given string: " . $string . "\n"; echo "Updated string: " . rtrim($string, ",") . "\n";

Output

Given string: remove comma from end of string php, Updated string: remove comma from end of string php

In the above answer, we have remove comma from end of string PHP.

Conclusion

In conclusion, removing the last character from a string in PHP can be accomplished using various methods, depending on the specific use case. By using the substr() , rtrim() , or substr_replace() functions, we can easily remove the last character from a string and obtain the desired result.

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PHP: Remove Last Character from String – substr / substr_replace / rtrim

So here are three ways how to delete last character from string in PHP.

Method 1 – PHP: Remove Last Character from String using substr and mb_substr⌗

substr and mb_substr commands usage⌗

substr($string, 0, -1); mb_substr($string, 0, -1); 

substr and mb_substr example:⌗

$string = "This is test string.."; echo $string . "\n";  // substr function  echo "substr: " . substr($string, 0, -1);  echo "\n";  // mb_substr multibyte version  echo "mb_substr: " . mb_substr($string, 0, -1);  echo "\n"; 

Example output:⌗

This is test string.. This is test string. This is test string. 

Method 2 – PHP: Remove Last Character from String using substr_replace⌗

substr_replace command usage⌗

substr_replace example:⌗

$string = "This is test string.."; echo $string . "\n";  // substr_replace function  echo "substr_replace: " . substr_replace($string ,"",-1);  echo "\n"; 

Example output:⌗

This is test string.. This is test string. 

Method 3 – PHP: Remove Last Character from String using rtrim⌗

Note: rtrim function is not working exactly same way as substr and substr_replace, but it is of course useful some cases. Rtrim function trims all specified characters from end of the string.

rtrim command usage⌗

rtrim example:⌗

$string = "This is test string.."; echo $string . "\n";  // rtrim function  echo "rtrim: " . rtrim($string, ".");  echo "\n"; 

Example output:⌗

This is test string.. This is test string 

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Remove the Last Character From a String in PHP

1. Use the rtrim() Function to Remove the Last Character
2. Use the substr() Function to Remove the Last Character

This article will introduce different methods to remove the last character from a string in PHP with the use of functions rtrim() and substr() .

Use the rtrim() Function to Remove the Last Character

The rtrim() function is used explicitly for removing white spaces or characters from the end of a string. The correct syntax to use this function is as follows:

This function returns the final string obtained after performing the removal. The program below shows how we can use the rtrim() function to remove the last character from a string.

php $mystring = "This is a PHP program."; echo("This is the string before removal: $mystring\n"); $newstring = rtrim($mystring, ". "); echo("This is the string after removal: $newstring"); ?> 

This is the string before removal: This is a PHP program. This is the string after removal: This is a PHP program 

Use the substr() Function to Remove the Last Character

In PHP, we can also use the substr() function to remove the last character from a string. This command returns a specified substring, and the correct syntax to execute it is as follows:

substr($string, $start, $length) 

The program that removes the last character from the string using the substr() function is as follows:

php $mystring = "This is a PHP program."; echo substr($mystring, 0, -1); ?> 

Related Article — PHP String

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