rtrim function doesn't work with ending h letter

Question

$file = \"refinish.php\";
$folder = rtrim($file, \".php\");
echo $folder; // refinis

where is ending h ?

I tried with some other

Answer 1

How rtrim() works

$file = "finish.php";
$folder = rtrim($file, ".php");

is processed working through the characters in $file from the last character backwards as

$file = "finish.php";
//                ^
//     Is there a `p` in the list of characters to trim

$folder = rtrim($file, ".php");
//                       ^
//     Yes there is, so remove the `p` from the `$file` string

$file = "finish.ph";
//               ^
//     Is there a `h` in the list of characters to trim

$folder = rtrim($file, ".php");
//                        ^
//     Yes there is, so remove the `h` from the `$file` string

$file = "finish.p";
//              ^
//     Is there a `p` in the list of characters to trim

$folder = rtrim($file, ".php");
//                       ^
//     Yes there is, so remove the `p` from the `$file` string

$file = "finish.";
//             ^
//     Is there a `.` in the list of characters to trim

$folder = rtrim($file, ".php");
//                      ^
//     Yes there is, so remove the `.` from the `$file` string

$file = "finish";
//            ^
//     Is there a `h` in the list of characters to trim

$folder = rtrim($file, ".php");
//                        ^
//     Yes there is, so remove the `h` from the `$file` string

$file = "finis";
//           ^
//     Is there a `s` in the list of characters to trim

$folder = rtrim($file, ".php");
//                      ????
//     No there isn't, so terminate the checks and return the current value of `$file`

$file = "finis";

Answer 2

$file = "refinish.php";
$folder = str_replace('.','',rtrim($file, "php"));
echo $folder; // refinis

Answer 3

rtrim's second argument is not the substring to remove but a set of characters—could also be a range. You can use preg_replace if you want to make sure only the trailing .php is removed. e.g.,

preg_replace("/\.php$/", "", "refinish.php")

Answer 4

rtrim() does not remove the string you specify in the second argument, but all characters in that string. In your case, that includes "h".

What you need here is a simple str_replace():

$folder = str_replace('.php', '', $file);

Edit: if you want to make sure it strips the ".php" part only from the end of the $file, you can go with @racetrack's suggestion below and use preg_replace() instead:

$folder = preg_replace('/\.php$/', '', $file);

Answer 5

You Try code

$filename = "refinish.php";
$extension_pos = strrpos($filename , '.');  
$file = substr($filename, 0, $extension_pos) ;

$folder = str_replace('.','',rtrim( $file , "php"));
echo $folder.substr($filename, $extension_pos);

its working fine . its output is refinis.php