PHP Exercises: Create a new string which is n copies of a given string
PHP Basic Algorithm: Exercise-25 with Solution
Write a PHP program to create a new string which is n (non-negative integer) copies of a given string.
Sample Solution:
PHP Code :
<?php
// Define a function that repeats a string $n times
function test($s, $n)
{
// Initialize an empty string to store the result
$result = "";
// Iterate $n times and concatenate the input string to the result
for ($i = 0; $i < $n; $i++) {
$result = $result . $s;
}
// Return the final result
return $result;
}
// Test the function with different inputs
echo test("JS", 2) . "\n";
echo test("JS", 3) . "\n";
echo test("JS", 1) . "\n";
?>
Explanation:
- Function Definition:
- The test function takes two parameters: $s (a string to repeat) and $n (the number of times to repeat it).
- Initialize Result Variable:
- An empty string "$result" is initialized to accumulate the repeated string.
- Loop to Repeat the String:
- A for loop runs $n times, concatenating $s to $result in each iteration. By the end of the loop, $result contains $s repeated $n times.
- Return Result:
- The function returns the final accumulated string stored in $result.
Output:
JSJS JSJSJS JS
Visual Presentation:
Flowchart:
PHP Code Editor:
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Previous: Write a PHP program to convert the last 3 characters of a given string in upper case. If the length of the string has less than 3 then uppercase all the characters.
Next: Write a PHP program to create a new string which is n (non-negative integer) copies of the the first 3 characters of a given string. If the length of the given string is less than 3 then return n copies of the string.
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