array_map(function($v){return str_getcsv($v,"\t");},file('file.csv'));

示例* .csv文件：@H_502_4@

a   b   c   d 
1   2   3   4

输出：@H_502_4@

Array ( [0] => Array ( [0] => a [1] => b [2] => c [3] => d ) [1] => Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 ) )