على الانترنت عكس سلسلة

I am trying to find a way to reverse a string, I've seen alternatives but i wanted to to it this way thinking outside the box and not using anyone else's code as an alternative, the code below reverses the string but I keep getting this error:

Notice: Undefined offset: 25 in C:\wamp\www\test\index.php on line 15

25 being the length of the string which is being deincremented.

//error_reporting(NULL);$string = trim("This is a reversed string");//find length of string including whitespace$len =strlen($string);//slipt sting into an array$stringExp = str_split($string);//deincriment string and echo out in reversefor ($i = $len; $i >=0;$i--){echo $stringExp[$i];}

thanks in advance

My string is "csm15+abc-indiaurban@v2". I want only "indiaurban" from my string. what I am doing right now is :

var lastindexofplusminus = input.LastIndexOfAny(new char[]{'+','-'});var lastindexofattherate = input.LastIndexOf('@');string sub = input.Substring(lastindexofplusminus,lastindexofattherate);

but getting error "Index and length must refer to a location within the string."

Thanks in Advance.

For my program I want to reverse letters in a line of text. However I don't want to reverse the order of the words in the sentence. For example when I input: "This is a string"

I get: gnirts a si siht

But I want: siht si a gnirts

public static String reverseWordCharacters(String text1) {        String reverse = "";        int length = text1.length();        for (int i = length - 1; i >= 0; i--) {            reverse = reverse + text1.charAt(i);            System.out.println();        }        return reverse;    }}

I need a little help. I found a question like "Write a Java program that will reverse each word of user given string without altering their position and using any built in function."

I solved a code for reversing the whole sentence, but I don't know how to solve this one. Please help me...

import java.io.*;class test25 {     public static void main(String args[]) throws IOException {         BufferedReader br = new BufferedReader(new InputStreamReader(System.in));        System.out.print("Enter string: ");        String s = br.readLine();        String reverse = "";        int length = s.length();        for (int i = length - 1; i >= 0; i--)            reverse = reverse + s.charAt(i);        System.out.println("Result:" + reverse);     } }

How do you reverse a string in place (or in-place) in JavaScript when passed to a function with a return statement? All without using the built-in functions? .reverse(), .charAt(), etc.