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<?php function sort_start_ascending( $a, $b ) { return $a['start'] - $b['start']; } $array = array( array( 'name' => 'first', 'start' => 4 ), array( 'name' => 'second', 'start' => 4 ), ); usort( $array, 'sort_start_ascending' ); print_r( $array );

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