How can type juggling in PHP affect the results of comparisons?

Type juggling in PHP can affect the results of comparisons because PHP will automatically convert variables to a common data type before comparing them. This can lead to unexpected results, especially when comparing strings and numbers. To avoid this issue, it's important to use strict comparison operators (=== and !==) which not only compare values but also data types.

// Example of using strict comparison operator to avoid type juggling
$var1 = "10";
$var2 = 10;

if ($var1 === $var2) {
    echo "Values are equal and of the same type";
} else {
    echo "Values are not equal or of different types";
}