What are the implications of using == and === in PHP comparisons?

Using == in PHP comparisons can lead to unexpected results due to type coercion, where values are converted to a common type before comparison. This can cause issues when comparing different types of variables. On the other hand, using === performs a strict comparison, checking both the values and types of the variables. It is recommended to use === for more predictable and accurate comparisons in PHP.

// Using === for strict comparison
if ($var1 === $var2) {
    // Code block
}