This is a very common PHP question, how to remove last character from string in PHP?

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($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