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<?php header( 'Content-type: text/plain' ); $a = array(); $a['foo'][]['bar'] = 1; $a['foo'][]['bar'] = 2; var_dump($a);
Output for 4.3.0 - 7.2.0
array(1) { ["foo"]=> array(2) { [0]=> array(1) { ["bar"]=> int(1) } [1]=> array(1) { ["bar"]=> int(2) } } }