In what scenarios would using numerical values and the chr() function be a more effective approach than directly iterating through characters when outputting sequences in PHP?

Using numerical values and the chr() function can be more effective than directly iterating through characters when outputting sequences in PHP when you need to output a specific range of characters or when you want to easily convert numerical values to their corresponding ASCII characters. This approach can simplify the code and make it more readable compared to manually iterating through characters. 

// Using numerical values and chr() function to output a sequence of characters
$start = 65; // ASCII value for 'A'
$end = 90; // ASCII value for 'Z'

for ($i = $start; $i <= $end; $i++) {
    echo chr($i) . " ";
}

Keywords

numerical values chr() function sequences outputting PHP

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