find the square root of a number in php

To find the square root of a number in PHP, you can use the sqrt() function. This function takes a single parameter which is the number whose square root you want to find. Here's an example:

main.php
$number = 25;
$sqrt = sqrt($number);
echo "The square root of $number is $sqrt"; // Output: The square root of 25 is 5
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In this example, we assign the value 25 to the $number variable. We then use the sqrt() function to find the square root of the number and assign the result to the $sqrt variable. Finally, we use an echo statement to print out the result.

You can use this function to find the square root of any positive number in PHP.