What is the significance of using != versus !== in PHP for cookie comparison?

When comparing values in PHP, using != checks for equality after type conversion, while using !== checks for strict equality without type conversion. When comparing cookie values, it is important to use !== to ensure that both the value and the type match exactly. 

// Using !== for strict comparison when comparing cookie values
if ($_COOKIE['cookie_name'] !== 'expected_value') {
    // Handle mismatch
}

Keywords

PHP comparison operators cookie type coercion strict comparison

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