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run code in 300+ PHP versions simultaneously
<?php $array = [ ['data1' => ['value1' => 1, 'value2' => 2]], ['data2' => ['value5' => 5, 'value6' => 6]], ['data1' => ['value3' => 3, 'value4' => 4]], ]; var_export( array_merge_recursive(...$array) );

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