Class: Services_ExchangeRates_Common

Source Location: /Services_ExchangeRates-0.5.3/ExchangeRates/Common.php

Child classes:

Services_ExchangeRates_Rates_NBI: National Bank of Israel Currency Exchange Rates Driver

Services_ExchangeRates_Countries_UN: United Nations country codes driver

Services_ExchangeRates_Currencies_UN: United Nations Currency Codes Driver

Services_ExchangeRates_Rates_ECB: European Central Bank Exchange Rate Driver

Services_ExchangeRates_Rates_NBP: National Bank of Poland Exchange Rate Driver

Inherited Variables

Inherited Methods

Class Details

[line 41]
Common functions for data retrieval

Provides base functions to retrieve and cache data feeds in different formats.

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Method Detail

retrieveFile [line 55]

string retrieveFile(
string
$url, int
$cacheLength, 
$cacheDir)

Retrieves data from cache, if it's there. If it is, but it's expired,

it performs a conditional GET to see if the data is updated. If it isn't, it down updates the modification time of the cache file and returns the data. If the cache is not there, or the remote file has been modified, it is downloaded and cached.

Return: File contents

Parameters:

string	`$url`	—	URL of remote file to retrieve
int	`$cacheLength`	—	Length of time to cache file locally before asking the server if it changed.
	`$cacheDir`	—

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retrieveXML [line 104]

object XML_Tree retrieveXML(
string
$url, int
$cacheLength, 
$cacheDir)

Downloads XML file or returns it from cache

Return: object

Parameters:

string	`$url`	—	URL of XML file
int	`$cacheLength`	—	Length of time to cache
	`$cacheDir`	—

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Class: Services_ExchangeRates_Common

Class Overview

Methods

Child classes:

Inherited Variables

Inherited Methods

Class Details

Method Detail

retrieveFile [line 55]

Parameters:

retrieveXML [line 104]

Parameters: