php怎么把数组保存为文件格式？实例代码

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

第二种方法：

先贴几个函数：

//写入
function cache_write($name, $var, $values) {
    $cachefile = S_ROOT.'./data/data_'.$name.'.php';
    $cachetext = "        "if(!defined('CHECK_CODE')) exit('Access Denied');\r\n".
        '$'.$var.'='.arrayeval($values).
        "\r\n?>";
    if(!swritefile($cachefile, $cachetext)) {
        exit("File: $cachefile write error.");
    }
}
//数组转换成字串
function arrayeval($array, $level = 0) {
    $space = '';
    for($i = 0; $i         $space .= "\t";
    }
    $evaluate = "Array\n$space(\n";
    $comma = $space;
    foreach($array as $key => $val) {
        $key = is_string($key) ? '\''.addcslashes($key, '\'\\').'\'' : $key;
        $val = !is_array($val) && (!preg_match("/^\-?\d+$/", $val) || strlen($val) > 12) ? '\''.addcslashes($val, '\'\\').'\'' : $val;
        if(is_array($val)) {
            $evaluate .= "$comma$key => ".arrayeval($val, $level + 1);
        } else {
            $evaluate .= "$comma$key => $val";
        }
        $comma = ",\n$space";
    }
    $evaluate .= "\n$space)";
    return $evaluate;
}
//写入文件
function swritefile($filename, $writetext, $openmod='w') {
    if(@$fp = fopen($filename, $openmod)) {
        flock($fp, 2);
        fwrite($fp, $writetext);
        fclose($fp);
        return true;
    } else {
        runlog('error', "File: $filename write error.");
        return false;
    }
}

调用：

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

include格式：

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