Chr()

The chr() function is used to return a specific character based on the ASCII code. The syntax of the chr() function is as follows:

string chr ( int $ascii )

The function takes one parameter: the ASCII code of the character to be returned ($ascii). The chr() function returns the character.

Here is an example of how to use the chr() function:

<?php
$ascii_code = 65;
$character = chr($ascii_code);
echo $character;
?>

In this example, we have an ASCII code ($ascii_code) that represents the character "A". We want to convert this ASCII code into the corresponding character. We pass the ASCII code to the chr() function, which returns the character.

The output of this code will be:

A

As you can see, the chr() function has returned the character "A" based on the ASCII code.

Here is another example of how to use the chr() function with a loop:

<?php
for ($i = 65; $i <= 90; $i++) {
    echo chr($i) . " ";
}
?>

In this example, we are using a loop to print out all the uppercase letters of the alphabet. We start with the ASCII code for "A" (65) and end with the ASCII code for "Z" (90). We pass each ASCII code to the chr() function, which returns the corresponding character.

The output of this code will be:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

As you can see, the chr() function has returned the corresponding characters for each ASCII code in the loop.

The chr() function is a useful tool for working with ASCII codes and characters. It can help make your code more efficient and effective. By mastering this function, you can become a more proficient PHP developer.

We hope this article has been helpful in understanding the chr() function in PHP. If you have any questions or comments, please feel free to reach out to us.