わかりましたので、ようやく機能するものを開発することができました。コードは、PayPal の TransactionSearch API オプションへのリンクとともに以下に掲載されています。
https://developer.paypal.com/webapps/developer/docs/classic/api/merchant/TransactionSearch_API_Operation_NVP/
<?php
$info = 'USER=[API_USERNAME]'
.'&PWD=[API_PASSWORD]'
.'&SIGNATURE=[API_SIGNATURE]'
.'&METHOD=TransactionSearch'
.'&TRANSACTIONCLASS=RECEIVED'
.'&STARTDATE=2013-01-08T05:38:48Z'
.'&ENDDATE=2013-07-14T05:38:48Z'
.'&VERSION=94';
$curl = curl_init('https://api-3t.paypal.com/nvp');
curl_setopt($curl, CURLOPT_FAILONERROR, true);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_POSTFIELDS, $info);
curl_setopt($curl, CURLOPT_HEADER, 0);
curl_setopt($curl, CURLOPT_POST, 1);
$result = curl_exec($curl);
# Bust the string up into an array by the ampersand (&)
# You could also use parse_str(), but it would most likely limit out
$result = explode("&", $result);
# Loop through the new array and further bust up each element by the equal sign (=)
# and then create a new array with the left side of the equal sign as the key and the right side of the equal sign as the value
foreach($result as $value){
$value = explode("=", $value);
$temp[$value[0]] = $value[1];
}
# At the time of writing this code, there were 11 different types of responses that were returned for each record
# There may only be 10 records returned, but there will be 110 keys in our array which contain all the different pieces of information for each record
# Now create a 2 dimensional array with all the information for each record together
for($i=0; $i<count($temp)/11; $i++){
$returned_array[$i] = array(
"timestamp" => urldecode($temp["L_TIMESTAMP".$i]),
"timezone" => urldecode($temp["L_TIMEZONE".$i]),
"type" => urldecode($temp["L_TYPE".$i]),
"email" => urldecode($temp["L_EMAIL".$i]),
"name" => urldecode($temp["L_NAME".$i]),
"transaction_id" => urldecode($temp["L_TRANSACTIONID".$i]),
"status" => urldecode($temp["L_STATUS".$i]),
"amt" => urldecode($temp["L_AMT".$i]),
"currency_code" => urldecode($temp["L_CURRENCYCODE".$i]),
"fee_amount" => urldecode($temp["L_FEEAMT".$i]),
"net_amount" => urldecode($temp["L_NETAMT".$i]));
}
?>
また、特定のトランザクションの詳細を取得するために、この気の利いた小さなシンプルなスクリプトを思い付きました。
https://developer.paypal.com/webapps/developer/docs/classic/api/merchant/GetTransactionDetails_API_Operation_NVP/
<?php
$info = 'USER=[API_USERNAME]'
.'&PWD=[API_PASSWORD]'
.'&SIGNATURE=[API_SIGNATURE]'
.'&VERSION=94'
.'&METHOD=GetTransactionDetails'
.'&TRANSACTIONID=[TRANSACTION_ID]'
.'&STARTDATE=2013-07-08T05:38:48Z'
.'&ENDDATE=2013-07-12T05:38:48Z';
$curl = curl_init('https://api-3t.paypal.com/nvp');
curl_setopt($curl, CURLOPT_FAILONERROR, true);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_POSTFIELDS, $info);
curl_setopt($curl, CURLOPT_HEADER, 0);
curl_setopt($curl, CURLOPT_POST, 1);
$result = curl_exec($curl);
parse_str($result, $result);
foreach($result as $key => $value){
echo $key.' => '.$value."<BR>";
}
?>