What is the significance of using == versus === in PHP comparisons?

Using == in PHP comparisons checks for equality in terms of value, while using === checks for equality in terms of both value and data type. This means that using === is more strict and can prevent unexpected type coercion issues that may arise when using ==. It is generally recommended to use === for more precise and reliable comparisons in PHP.

// Using === to check for equality in terms of both value and data type
if ($a === $b) {
    // Code to execute if $a is equal to $b in terms of both value and data type
}