php把数组保存成文件格式

$file="./cache/file.cache";//定义要保存的数组文件路径、名称 
$array = array("color" => array("blue", "red", "green"), 
"size" => array("small", "medium", "large")); 
file_put_contents($file,serialize($array));//写入缓存 
//读取缓存 
$handle = fopen($file, "r"); 
$cacheArray = unserialize(fread($handle, filesize ($file)));

function cache_write($name, $var, $values) { 
    $cachefile = S_ROOT.‘./data/data_‘.$name.‘.php‘; 
    $cachetext = "<?php\r\n". 
    "if(!defined(‘CHECK_CODE‘)) exit(‘Access Denied‘);\r\n". 
    ‘$‘.$var.‘=‘.arrayeval($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 <= $level; $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; 
    } 
}

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

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