What is the difference between == and === in php [duplicate]

Answer 1

Identical:

$a === $b

TRUE if $a is equal to $b, and they are of the same type. (introduced in PHP 4)

Equal:

$a == $b

TRUE if $a is equal to $b after type juggling.

Read here for more: http://www.php.net/manual/en/language.operators.comparison.php

Answer 2

• $a == $b

Equal true: if $a is equal to $b, after type juggling.

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• $a === $b

Identical true: if $a is equal to $b, and they are of the same type.