PHPを使用して、為替レートを取得し、定期的にデータベースに保存する方法についての解決策を探すのにうんざりしていました。データベースに接続できましたが、レートを更新できません。
Stock_currency というテーブルがあります
[Currency] [Spot_Rate] [Sell_Rate] [Amont] [Buy_Rate] という列もあります。
これは、ソリューションに変更しようとしている PHP コードです。
class CurrencyConverter {
var $xml_file = "www.ecb.int/stats/eurofxref/eurofxref-daily.xml";
var $localhost, $root, $root, $mohamed, $stock_currency;
var $exchange_rates = array();
//Load Currency Rates
function CurrencyConverter($host,$user,$pass,$db,$tb) {
$this->localhost = $host;
$this->root = $user;
$this->root = $pass;
$this->mohamed = $db;
$this->stock_currency = $tb;
$this->checkLastUpdated();
$conn = mysql_connect($this->localhost,$this->root,$this->root);
$rs = mysql_select_db($this->mohamed,$conn);
$sql = "SELECT * FROM ".$this->stock_currency;
$rs = mysql_query($sql,$conn);
while($row = mysql_fetch_array($rs)) {
$this->exchange_rates[$row['currency']] = $row['rate'];
}
}
/* Perform the actual conversion, defaults to £1.00 GBP to USD */
function convert($amount=1,$from="GBP",$to="USD",$decimals=2) {
return(number_format(($amount/$this->exchange_rates[$from])*$this->exchange_rates[$to],$decimals));
}
/* Check to see how long since the data was last updated */
function checkLastUpdated() {
$conn = mysql_connect($this->localhost,$this->root,$this->root);
$rs = mysql_select_db($this->mohamed,$conn);
$sql = "SHOW TABLE STATUS FROM ".$this->mohamed." LIKE '".$this->stock_currency."'";
$rs = mysql_query($sql,$conn);
if(mysql_num_rows($rs) == 0 ) {
$this->createTable();
} else {
$row = mysql_fetch_array($rs);
if(time() > (strtotime($row["Update_time"])+(12*60*60)) ) {
$this->downloadExchangeRates();
}
}
}
/* Download xml file, extract exchange rates and store values in database */
function downloadExchangeRates() {
$currency_domain = substr($this->xml_file,0,strpos($this->xml_file,"/"));
$currency_file = substr($this->xml_file,strpos($this->xml_file,"/"));
$fp = @fsockopen($currency_domain, 80, $errno, $errstr, 10);
if($fp) {
$out = "GET ".$currency_file." HTTP/1.1\r\n";
$out .= "Host: ".$currency_domain."\r\n";
$out .= "User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8) Gecko/20051111 Firefox/1.5\r\n";
$out .= "Connection: Close\r\n\r\n";
fwrite($fp, $out);
while (!feof($fp)) {
$buffer .= fgets($fp, 128);
}
fclose($fp);
$pattern = "{<Cube\s*currency='(\w*)'\s*rate='([\d\.]*)'/>}is";
preg_match_all($pattern,$buffer,$xml_rates);
array_shift($xml_rates);
for($i=0;$i<count($xml_rates[0]);$i++) {
$exchange_rate[$xml_rates[0][$i]] = $xml_rates[1][$i];
}
$conn = mysql_connect($this->localhost,$this->root,$this->root);
$rs = mysql_select_db($this->mohamed,$conn);
foreach($exchange_rate as $currency=>$rate) {
if((is_numeric($rate)) && ($rate != 0)) {
$sql = "SELECT * FROM ".$this->stock_currency." WHERE currency='".$currency."'";
$rs = mysql_query($sql,$conn) or die(mysql_error());
if(mysql_num_rows($rs) > 0) {
$sql = "UPDATE ".$this->stock_currency." SET rate=".$rate." WHERE currency='".$currency."'";
} else {
$sql = "INSERT INTO ".$this->stock_currency." VALUES('".$currency."',".$rate.")";
}
$rs = mysql_query($sql,$conn) or die(mysql_error());
}
}
}
}
/* Create the currency exchange table */
function createTable() {
$conn = mysql_connect($this->localhost,$this->root,$this->root);
$rs = mysql_select_db($this->mohamed,$conn);
$sql = "CREATE TABLE ".$this->stock_currency." ( currency char(3) NOT NULL default '', rate float NOT NULL default '0', PRIMARY KEY(currency) ) ENGINE=MyISAM";
$rs = mysql_query($sql,$conn) or die(mysql_error());
$sql = "INSERT INTO ".$this->stock_currency." VALUES('EUR',1)";
$rs = mysql_query($sql,$conn) or die(mysql_error());
$this->downloadExchangeRates();
}
}
?>
私は 1.00 ポンド £ の変換のために電話しました
<?php
include('CurrencyConverter');
$x = new CurrencyConverter('localhost','root','root','mohamed','Stock_Currency');
echo $x->convert(1.00,'GBP','USD');
?>
これは私が受け取るエラーです
( ! ) Warning: include(CurrencyConverter) [<a href='function.include'>function.include</a>]: failed to open stream: No such file or directory in C:\wamp\www\Currency.php on line 2
Call Stack
# Time Memory Function Location
1 0.0005 672752 {main}( ) ..\Currency.php:0
このエラーメッセージもわかりません
( ! ) Warning: include() [<a href='function.include'>function.include</a>]: Failed opening 'CurrencyConverter' for inclusion (include_path='.;C:\php\pear') in C:\wamp\www\Currency.php on line 2
Call Stack
# Time Memory Function Location
1 0.0005 672752 {main}( ) ..\Currency.php:0
これは、3行目に理解できないエラーがあることを示しています
( ! ) Fatal error: Class 'CurrencyConverter' not found in C:\wamp\www\Currency.php on line 3
Call Stack
# Time Memory Function Location
1 0.0005 672752 {main}( ) ..\Currency.php:0