array(6) { ["a"]=> string(4) "HTML" ["b"]=> string(3) "CSS" ["c"]=> string(10) "JavaScript" ["d"]=> string(5) "HTML5" ["e"]=> string(4) "CSS3" ["f"]=> string(9) "AngularJS" }

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bool(false)

bool(false)

bool(true)

bool(true)

bool(true)