How can a double if-code be implemented in PHP?

To implement a double if-code in PHP, you can use nested if statements where one if statement is inside another. This allows you to check for multiple conditions before executing a block of code. Here is an example of how a double if-code can be implemented in PHP: 

$number = 15;

if ($number > 10) {
    if ($number < 20) {
        echo "The number is between 10 and 20.";
    } else {
        echo "The number is greater than or equal to 20.";
    }
} else {
    echo "The number is less than or equal to 10.";
}

Keywords

nested if statements conditional statements control structures PHP programming logical operators

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