How does the "===" operator work in PHP and why is it important in string comparison?

The "===" operator in PHP is a strict comparison operator that not only compares the values of variables but also checks their data types. This is important in string comparison because using "==" for string comparison may lead to unexpected results due to PHP's loose typing system. By using "===", you ensure that both the values and data types of the strings are being compared accurately. 

$string1 = "10";
$string2 = 10;

if ($string1 === $string2) {
    echo "The strings are identical.";
} else {
    echo "The strings are not identical.";
}

Keywords

PHP === operator string comparison type-safe comparison data types

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