How can dynamic typing in PHP variables affect the outcome of conditional statements like ELSEIF?

Dynamic typing in PHP variables can affect the outcome of conditional statements like ELSEIF because PHP does not require variable declarations with specific types. This means that a variable's type can change during runtime, potentially leading to unexpected behavior in conditional statements. To solve this issue, it is important to check both the value and type of the variables in conditional statements using strict comparison operators (=== and !==) to ensure accurate evaluations. 

$var = "1";

if ($var === 1) {
    echo "The variable is an integer with a value of 1.";
} elseif ($var === "1") {
    echo "The variable is a string with a value of '1'.";
} else {
    echo "The variable is not equal to 1 or '1'.";
}

Keywords

dynamic typing PHP variables conditional statements ELSEIF outcome

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