Q:

Write a PHP program to exchange the first and last characters in a given string and return the new string

hamza
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2022-05-18
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Write a PHP program to exchange the first and last characters in a given string and return the new string.

Php programming,
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hamza
2022-05-18
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<?php
function test($str) 
{
   return strlen($str) > 1 ? substr($str, strlen($str) - 1).substr($str, 1, strlen($str) - 2). substr($str, 0, 1) : $str;
   
}

echo test("abcd")."\n";
echo test("a")."\n";
echo test("xy")."\n";

 

Sample Output:
dbca
a
yx

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