我正在使用一些类从纳斯达克检索公司信息。根据给定的字母获取公司信息。所有的工作都是这样的，我可以通过给出字母和数字来获取业务，但是如果我试图设置一个范围，并通过foreach语句的字母，唯一可以检索的是第一个字母的信息。
class Finance {
public static $companyList = array();
public static function getCompaniesByLetter($letter = null,$number = null) {
if ($letter && $number) {
$letter = trim(strtoupper($letter));
$companyList = 'http://www.nasdaq.com/screening/companies-by-name.aspx?letter='.$letter.'&render=download';
if (@file_get_contents($companyList)) {
self::$companyList = null;
$csv = trim(str_replace('"Symbol","Name","LastSale","MarketCap","ADR TSO","IPOyear","Sector","industry","Summary Quote",', '', file_get_contents($companyList)));
time_nanosleep(0, 300000000);
$csv = file_put_contents('tmpcompanylist.csv', $csv);
$file = fopen('tmpcompanylist.csv', 'r');
$i = 0;
while (!feof($file) && $i < $number) {
$line = fgets($file);
$line = str_replace('"', '', $line);
$companyInfo = explode(',', $line);
$removeThisNumber = floatval($companyInfo[2]);
if (!$removeThisNumber) {
$sector = 7;
$industry = 8;
} else {
$sector = 6;
$industry = 7;
}
$clearCompanyName = str_replace($removeThisNumber, '', $companyInfo[2]);
$companyName = $companyInfo[1].$clearCompanyName;
self::$companyList[] = array(
'symbol' => $companyInfo[0],
'name' => $companyName,
'sector' => $companyInfo[$sector],
'industry' => $companyInfo[$industry]
);
$i++;
}
fclose($file);
return true;
}
return false;
}
return false;
}
//This method will insert the companyinformation in database
public function insertCompaniesByLetter($range = array(),$number = null) {
if (is_array($range) && $number && count($range == 2)) {
$range = range($range[0], $range[1]);
foreach ($range as $letter) {
if (self::getCompaniesByLetter($letter,$number)) {
foreach (self::$companyList as $company => $data) {
echo ($data['symbol']).'<br />';
echo ($data['name']).'<br />';
echo ($data['sector']).'<br />';
}
return true;
}
}
}
return false;
}
}
获取公司的方法是这样的:
Finance::insertCompaniesByLetter(array('A','D'),'10');
但是由于某些原因，结果是不需要的:
Array
(
[0] => Array
(
[symbol] => PIH
[name] => 1347 Property Insurance Holdings Inc.
[sector] => n/a
[industry] => n/a
)
[1] => Array
(
[symbol] => FLWS
[name] => 1-800 FLOWERS.COM Inc.
[sector] => Consumer Services
[industry] => Other Specialty Stores
)
[2] => Array
(
[symbol] => FCTY
[name] => 1st Century Bancshares Inc
[sector] => Finance
[industry] => Major Banks
)
[3] => Array
(
[symbol] => FCCY
[name] => 1st Constitution Bancorp (NJ)
[sector] => Finance
[industry] => Savings Institutions
)
[4] => Array
(
[symbol] => SRCE
[name] => 1st Source Corporation
[sector] => Finance
[industry] => Major Banks
)
[5] => Array
(
[symbol] => FUBC
[name] => 1st United Bancorp Inc. (FL)
[sector] => Finance
[industry] => Major Banks
)
[6] => Array
(
[symbol] => VNET
[name] => 21Vianet Group Inc.
[sector] => Technology
[industry] => Computer Software: Programming
)
[7] => Array
(
[symbol] => XXII
[name] => 22nd Century Group Inc
[sector] => Consumer Non-Durables
[industry] => Farming/Seeds/Milling
)
[8] => Array
(
[symbol] => DDD
[name] => 3D Systems Corporation
[sector] => Technology
[industry] => Computer Software: Prepackaged Software
)
[9] => Array
(
[symbol] => MMM
[name] => 3M Company
[sector] => Health Care
[industry] => Medical/Dental Instruments
)
)
我重写了insertcompanyesbyrange()方法，现在它可以工作了。它看起来是这样的:
public function insertCompaniesByRange($letters = array(), $number = null) {
if (is_array($letters) && $number && count($letters) == 2) {
$range = range($letters[0], $letters[1]);
foreach ($range as $letter) {
if ($this->getCompaniesByLetter($letter,$number)) {
foreach($this->companyList as $company) {
$this->insertCompany($company);
}
}
}
}
return false;
}