程式設計@筆記

//***********
//陣列轉字串
//***********
function Array2String($Array) {
$Return='';
$NullValue="^^^";
foreach ($Array as $Key => $Value) {
if(is_array($Value))
$ReturnValue='^^array^'.Array2String($Value);
else
$ReturnValue=(strlen($Value)>0)?$Value:$NullValue;
$Return.=urlencode(base64_encode($Key)) . '|' . urlencode(base64_encode($ReturnValue)).'||';
}
return urlencode(substr($Return,0,-2));
}

//***********
//字串轉陣列
//***********
function String2Array($String) {
$Return=array();
$String=urldecode($String);
$TempArray=explode('||',$String);
$NullValue=urlencode(base64_encode("^^^"));
foreach ($TempArray as $TempValue) {
list($Key,$Value)=explode('|',$TempValue);
$DecodedKey=base64_decode(urldecode($Key));
if($Value!=$NullValue) {
$ReturnValue=base64_decode(urldecode($Value));
if(substr($ReturnValue,0,8)=='^^array^')
$ReturnValue=String2Array(substr($ReturnValue,8));
$Return[$DecodedKey]=$ReturnValue;
}
else
$Return[$DecodedKey]=NULL;
}
return $Return;
}