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[$string, 0, -1];
echo "\n";
Example output:
This is test string.. This is test string. This is test string.
substr_replace command usage
substr_replace[$string ,"",-1];
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[$string,'x'];
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
Contrary to the question asked, rtrim[] will remove any number of characters, listed in the second argument, from the end of the string. In case you expect just a single comma, the following code would do:
$newarraynama = rtrim[$arraynama, ","];
But in my case I had 2 characters, a comma and a space, so I had to change to
$newarraynama = rtrim[$arraynama, " ,"];
and now it would remove all commas and spaces from the end of the string, returning a, b, c, d, e either from a, b, c, d, e,, a, b, c, d, e,,,, a, b, c, d, e, or a, b, c, d, e , ,, , ,
But
in case there could be multiple commas but you need to remove only the last one, then rtrim[] shouldn't be used at all - see other answers for the solution that directly answers the question.
However, rtrim[] could be a good choice if you don't know whether the extra character could be present or not. Unlike substr-based solutions it will return a, b, c, d, e from a, b, c, d, e
Question – How do I remove last character from a string in PHP script? In this tutorial you will learned multiple methods to remove last character from a string using php.
This tutorial describes 4 methods to remove last character from a string in PHP programming language. You can use any one of the following methods as per the requirements.
- Don’t Miss – Check If String Contains a Sub String in PHP
Method 1 – Using substr_replace function
You can use the PHP substr_replace[] function to remove the last character from a string in PHP.
Syntax:
substr_replace[$string,"",-1]; |
Example:
|
Output:
Original string: Hello TecAdmin! Updated string: Hello TecAdmin
Method 2 – substr function
Use the substr function to remove the last character from any string in PHP string
Syntax:
Example:
|
Output:
Original string: Hello TecAdmin! Updated string: Hello TecAdmin
Method 3 – mb_substr function
Use the mb_substr function to remove characters from the end of the string.
Syntax:
mb_substr[$string,0,-1]; |
Example:
|
Output:
Original string: Hello TecAdmin! Updated string: Hello TecAdmin
Method 4 – rtrim function
The rtrim function to used to remove specific characters from the end of the string.
Syntax:
Here “x” is the character to remove.
Example:
|
Output:
Original string: Hello TecAdmin! Updated string: Hello TecAdmin