How to convert numbers to letters in php

php method to convert numbers to letters: first create a php file named to; then generate a random integer from 0 to 25 and assign a value; then return the uppercase letter corresponding to the ASCII value through the chr function; finally Just output the randomly generated integers and the obtained uppercase and lowercase letters.

Convert numbers to uppercase and lowercase by adding the number to the letter pair in the ASCII value and return the corresponding letter in ASCII through the chr function. The numbers are 0-25 plus 65 for the object's uppercase a through z, and 97 for the corresponding lowercase.

php Convert numbers into uppercase and lowercase letters

Create a php file named to.

Generate a random integer from 0 to 25 and assign it.

Add 65 to a random integer to get a value and then return the uppercase letter corresponding to the ASCII value through the chr function.

Add 97 to a random integer to get a value and then return the lowercase letter corresponding to the ASCII value through the chr function.

Output the randomly generated integers and the obtained uppercase and lowercase letters.

You can also use strtolower to convert the uppercase letters obtained into lowercase letters.

Notes

Positive integers from 0 to 25

Recommended: "PHP Tutorial"

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