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PHP functions - Exercises, Practice, Solution

PHP functions [ 6 exercises with solution]

1. Write a function to calculate the factorial of a number (a non-negative integer). The function accepts the number as an argument. Go to the editor

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2. Write a function to check whether a number is prime or not. Go to the editor
Note: A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself.

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3. Write a function to reverse a string. Go to the editor

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4. Write a function to sort an array. Go to the editor

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5. Write a PHP function that checks whether a string is all lowercase. Go to the editor
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6. Write a PHP function that checks whether a passed string is a palindrome or not? Go to the editor
A palindrome is a word, phrase, or sequence that reads the same backward as forward, e.g., madam or nurses run.

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PHP Code Editor:

More to Come !

Do not submit any solution of the above exercises at here, if you want to contribute go to the appropriate exercise page.



PHP: Tips of the Day

$GLOBALS: This SuperGlobal Variable is used for accessing globals variables

Example:

<?php
$x = 25;
function foo(){
 echo $GLOBALS['x'];
}
echo $GLOBALS['x'];

?>

Output:

25