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@ 2013-12-03T20:28:50Z

<?php
$array = Array
(
    'out' => Array
        (
            'in1' => Array
                (
                    'd1' => "data1",
                    'd2' => "data2",
                    'd3' => "data3",
                    'd4' => "data4",
                    'd5' => "data5",
                    'd6' => "data6",
                    'd7' => "data7",
                    'd8' => "data8"
                ),

            'in2' => Array
                (
                    'd9' => Array
                        (
                            'b1' => "data9",
                            'b2' => "data10"
                        ),

                    'd10' => Array
                        (
                            'b1' => "data11",
                            'b2' => "data12"
                        )

                )

        )

);

function recursePrint($array, $prefix = '') {
    foreach($array AS $key => $value) {
    	if(is_array($value)) {
            recursePrint($value, $prefix . $key . ".");
        } else {
            echo $prefix . $key . "=" . $value . "\n";
        }
    }
}

recursePrint($array);

Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: out.in1.d1=data1 out.in1.d2=data2 out.in1.d3=data3 out.in1.d4=data4 out.in1.d5=data5 out.in1.d6=data6 out.in1.d7=data7 out.in1.d8=data8 out.in2.d9.b1=data9 out.in2.d9.b2=data10 out.in2.d10.b1=data11 out.in2.d10.b2=data12

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