数组转化成字符串,并原样还原回数组

2. $str = array
3. (
4. 'a' => 'aa',
5. 'b' => 'bb',
6. 'c' => array
7. (
8. 0 => 1,
9. 1 => 2,
10. 2 => 34,
11. 3 => 4,
12. ),
14. );
15. //把数组转化成字符串,可以进行直接存储到数据库中
16. $s = var_export($str, true);
17. //从字符串中还原回数组
18. eval("\$st = $s;");
19. var_dump($st);

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