php怎么把数组保存为文件格式？实例代码

2. $file="./cache/file.cache";
3. $array = array("color" => array("blue", "red", "green"),
4. "size" => array("small", "medium", "large"));
5. //缓存
6. file_put_contents($file,serialize($array));//写入缓存
7. //读出缓存
8. $handle = fopen($file, "r");
9. $cacheArray = unserialize(fread($handle, filesize ($file)));

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第二种方法：

先贴几个函数：

2. //写入
3. function cache_write($name, $var, $values) {
4. $cachefile = S_ROOT.'./data/data_'.$name.'.php';
5. $cachetext = " "if(!defined('CHECK_CODE')) exit('Access Denied');\r\n".
6. '$'.$var.'='.arrayeval($values).
7. "\r\n?>";
8. if(!swritefile($cachefile, $cachetext)) {
9. exit("File: $cachefile write error.");
10. }
11. }
12. //数组转换成字串
13. function arrayeval($array, $level = 0) {
14. $space = '';
15. for($i = 0; $i $space .= "\t";
16. }
17. $evaluate = "Array\n$space(\n";
18. $comma = $space;
19. foreach($array as $key => $val) {
20. $key = is_string($key) ? '\''.addcslashes($key, '\'\\').'\'' : $key;
21. $val = !is_array($val) && (!preg_match("/^\-?\d+$/", $val) || strlen($val) > 12) ? '\''.addcslashes($val, '\'\\').'\'' : $val;
22. if(is_array($val)) {
23. $evaluate .= "$comma$key => ".arrayeval($val, $level + 1);
24. } else {
25. $evaluate .= "$comma$key => $val";
26. }
27. $comma = ",\n$space";
28. }
29. $evaluate .= "\n$space)";
30. return $evaluate;
31. }
32. //写入文件
33. function swritefile($filename, $writetext, $openmod='w') {
34. if(@$fp = fopen($filename, $openmod)) {
35. flock($fp, 2);
36. fwrite($fp, $writetext);
37. fclose($fp);
38. return true;
39. } else {
40. runlog('error', "File: $filename write error.");
41. return false;
42. }
43. }

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调用：

cache_write('file', 'arrayName', $array);

include格式：

@include ('./data/data_cache.php'); //数组重新排序 sort($arrayName);