What is the significance of the chr() function in the PHP code?

The chr() function in PHP is used to convert an ASCII code to its corresponding character. This function is useful when working with ASCII values or when you need to convert a numerical value to its character representation. By using the chr() function, you can easily convert ASCII values to characters and vice versa in your PHP code.

// Example: Using chr() function to convert ASCII value to character
$asciiValue = 65; // ASCII value for 'A'
$character = chr($asciiValue);
echo $character; // Output: A