What is the significance of using "else if" versus "else" in PHP conditional statements?

Using "else if" allows you to check multiple conditions in a series, whereas using "else" only allows for a single fallback condition. This means that with "else if", you can have a chain of conditions that are checked sequentially until one of them evaluates to true, whereas with "else", only one condition is checked and executed if all previous conditions were false. 

// Example of using else if
$score = 85;

if ($score >= 90) {
    echo "A";
} else if ($score >= 80) {
    echo "B";
} else if ($score >= 70) {
    echo "C";
} else {
    echo "D";
}

Keywords

PHP conditional statements else if else programming logic

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