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<?php $array = array( "one" => "one", "2" => 2, "3.0" => 3.0, ); var_dump( array_keys( $array ) );
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { [0]=> string(3) "one" [1]=> int(2) [2]=> string(3) "3.0" }

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