Programming | Pixel Envision Ltd.

PHP Credit Card Validation class using Mod 10 (Luhn) + more!

February 17, 2012 PHP, Programming

Here is another PHP code snippet from my library. This PHP class allows you to validate credit card information before processing it further. Doing all possible off-line checks before sending it to he credit card gateway will help you save time & money…

If the card is valid it will return cleaned & formatted card number along with the card type (Visa, Mastercard, Amex, Dinners, Discover, JCB & Maestro).

Besides regular checks, validates the card number against Mod 10 (Luhn) as well as know test card numbers…

Features

Checks if the card number, expiration date & validation numbers are valid.
Checks if the card is expired
Finds & returns the card type.
Checks against the known test card numbers.
Validates the card number using Mod 10 algorithm.

Usage Sample

<?php
require ('mod10.php');
$CARDTYPE = $ErrArr = NULL;

$cc = new CCVal($_POST["card_number"], $_POST["card_expire_month"], $_POST["card_expire_year"], $_POST["card_cvv2"]);

$cstatus = $cc->IsValid();

if ($cstatus[0] == "valid")
{
    $CARDTYPE = $cstatus[1];
    $_POST["card_number"] = $cstatus[2];
    $_POST["card_cvv2"] = $cstatus[3];
}
else
{
    $ErrArr = $cstatus;
}
?>

<?php

require ('mod10.php');

$CARDTYPE = $ErrArr = NULL;

$cc = new CCVal($_POST["card_number"], $_POST["card_expire_month"], $_POST["card_expire_year"], $_POST["card_cvv2"]);

$cstatus = $cc->IsValid();

if ($cstatus[0] == "valid")

{

$CARDTYPE = $cstatus[1];

$_POST["card_number"] = $cstatus[2];

$_POST["card_cvv2"] = $cstatus[3];

}

else

{

$ErrArr = $cstatus;

}

Download

Download PHP code snippet *UPDATED FOR AMEX CVV FIX
Code is PHP5 compatible but it should also work on PHP4 (Untested)

License

This code is free to use, distribute, modify and study. When referencing please link back to this website / post in any way e.g. direct link, credits etc. If you find this useful, please leave a comment and share using the buttons below!

<?php class CCVal
{
    var $__ccType = '';
    var $__ccNum = '';
    var $__ccExpM = 0;
    var $__ccExpY = 0;
    var $__ccCVV = '';
    function CCVal($num, $expm, $expy, $cvv)
    {
        if (!empty($num))
        {
            $cardNumber = ereg_replace("[^0-9]", "", $num);
            if (!empty($cardNumber))
            {
                $this - &gt;
                __ccNum = $cardNumber;
            }
        }

        if (!empty($cvv))
        {
            $cardCVV = ereg_replace("[^0-9]", "", $cvv);
            if (!empty($cardCVV))
            {
                $this - &gt;
                __ccCVV = $cardCVV;
            }
        }

        if (!is_numeric($expm) || $expm & lt;
        1 || $expm & gt;
        12)
        {
            $this - &gt;
            __ccExpM = NULL;
        }
        else
        {
            $this - &gt;
            __ccExpM = $expm;
        }

        $currentYear = date('Y');
        settype($currentYear, 'integer');
        $expy = $expy + 2000;
        if (!is_numeric($expy) || $expy & lt;
        $currentYear || $expy & gt;
        $currentYear + 15)
        {
            $this - &gt;
            __ccExpY = NULL;
        }
        else
        {
            $this - &gt;
            __ccExpY = $expy;
        }

        if (ereg("^5[1-5][0-9]{14}$", $this - &gt;
        __ccNum))
        {
            $this - &gt;
            __ccType = MASTERCARD;
        }
        elseif (ereg("^4[0-9]{12}([0-9]{3})?$", $this - &gt;
        __ccNum))
        {
            $this - &gt;
            __ccType = VISA;
        }
        elseif (ereg("^3[47][0-9]{13}$", $this - &gt;
        __ccNum))
        {
            $this - &gt;
            __ccType = AMEX;
        }
        elseif (ereg("^3(0[0-5]|[68][0-9])[0-9]{11}$", $this - &gt;
        __ccNum))
        {
            $this - &gt;
            __ccType = DINNERS;
        }
        elseif (ereg("^6011[0-9]{12}$", $this - &gt;
        __ccNum))
        {
            $this - &gt;
            __ccType = DISCOVER;
        }
        elseif (ereg("^(3[0-9]{4}|2131|1800)[0-9]{11}$", $this - &gt;
        __ccNum))
        {
            $this - &gt;
            __ccType = JCB;
        }
        elseif (ereg("^(5[06-8]|6)[0-9]{10,17}$", $this - &gt;
        __ccNum))
        {
            $this - &gt;
            __ccType = MAESTRO;
        }
        else
        {
            $this - &gt;
            __ccType = UNKNOWN;
        }
    }

    function IsValid()
    {

        $validFormat = false;
        $validExp = false;
        $passCheck = false;
        $validCVV = false;
        $testCard = false;

        switch ($this - &gt;
        __ccType)
        {
            case MASTERCARD:
                $validFormat = true;
            break;
            case VISA:
                $validFormat = true;
            break;
            case AMEX:
                $validFormat = true;
            break;
            case DISCOVER:
                $validFormat = true;
            break;
            case DINNERS:
                $validFormat = true;
            break;
            case JCB:
                $validFormat = true;
            break;
            case MAESTRO:
                $validFormat = true;
            break;
            default:

                $validFormat = false;
        }

        $cardExpM = $this - &gt;
        __ccExpM;
        $cardExpY = $this - &gt;
        __ccExpY;

        if ($cardExpM & amp; & amp;
        $cardExpY & amp; & amp;
        date('Ym') & lt; = $cardExpY . $cardExpM)
        {
            $validExp = true;
        }
        $cardCVV = $this - &gt;
        __ccCVV;

        if ($cardCVV & amp; & amp;
        (strlen($cardCVV) == 3 & amp; & amp;
        $this - &gt;
        __ccType != AMEX))
        {
            $validCVV = true;
        }
        elseif ($cardCVV & amp; & amp;
        (strlen($cardCVV) == 4 & amp; & amp;
        $this - &gt;
        __ccType == AMEX))
        {
            $validCVV = true;
        }

        $cardNumber = strrev($this - &gt;
        __ccNum);
        $numSum = 0;

        for ($i = 0;$i & lt;strlen($cardNumber);$i++)
        {
            $currentNum = substr($cardNumber, $i, 1);
            if ($i % 2 == 1)
            {
                $currentNum *= 2;
            }
            if ($currentNum & gt;
            9)
            {
                $firstNum = $currentNum % 10;
                $secondNum = ($currentNum - $firstNum) / 10;
                $currentNum = $firstNum + $secondNum;
            }

            $numSum += $currentNum;
        }

        $passCheck = ($numSum % 10 == 0);

        $testCard = in_array($this - &gt;
        __ccNum, array(
            '340000000000009',
            '341111111111111',
            '343434343434343',
            '346827630435344',
            '370000000000002',
            '370000200000000',
            '370407269909809',
            '370556019309221',
            '371449635398431',
            '374200000000004',
            '376462280921451',
            '377752749896404',
            '378282246310005',
            '378734493671000',
            '30000000000004',
            '30569309025904',
            '5019717010103742',
            '30204169322643',
            '30218047196557',
            '30221511563252',
            '36000000000008',
            '36148900647913',
            '36700102000000',
            '38000000000006',
            '38520000023237',
            '6011000000000004',
            '6011000000000012',
            '6011000400000000',
            '6011000990139424',
            '6011111111111117',
            '6011153216371980',
            '6011601160116611',
            '6011687482564166',
            '6011814836905651',
            '201400000000009',
            '201481123699422',
            '214925980592653',
            '214983972181233',
            '180001638277392',
            '180040153546898',
            '180058601526635',
            '3528000700000000',
            '3528723740022896',
            '3530111333300000',
            '3566002020360505',
            '3569990000000009',
            '630495060000000000',
            '6304900017740292441',
            '6333333333333333336',
            '5100080000000000',
            '5105105105105100',
            '5111111111111118',
            '5123619745395853',
            '5138495125550554',
            '5274576394259961',
            '5301745529138831',
            '5311531286000465',
            '5364587011785834',
            '5404000000000001',
            '5424000000000015',
            '5431111111111111',
            '5454545454545454',
            '5459886265631843',
            '5460506048039935',
            '5500000000000004',
            '5500939178004613',
            '5555555555554444',
            '5565552064481449',
            '5597507644910558',
            '6334580500000000',
            '6334900000000005',
            '633473060000000000',
            '6767622222222222222',
            '6767676767676767671',
            '5641820000000005',
            '6331101999990016',
            '6759649826438453',
            '4007000000027',
            '4012888818888',
            '4024007127653',
            '4222222222222',
            '4556069275201',
            '4556381812806',
            '4911830000000',
            '4916183935082',
            '4916603452528',
            '4929000000006',
            '4005550000000019',
            '4012888888881881',
            '4111111111111111',
            '4444333322221111',
            '4539105011539664',
            '4544182174537267',
            '4716914706534228',
            '4916541713757159',
            '4916615639346972',
            '4917610000000000',
            '4406080400000000',
            '4462000000000003',
            '4462030000000000',
            '4917300000000008',
            '4917300800000000',
            '4484070000000000',
            '4485680502719433'
        ));

        if ($validFormat & amp; & amp;
        $validExp & amp; & amp;
        $validCVV & amp; & amp;
        $passCheck & amp; & amp;
        !$testCard)
        {
            return array(
                "valid",
                $this - &gt;
                __ccType,
                $this - &gt;
                __ccNum,
                $this - &gt;
                __ccCVV
            );
        }
        else
        {
            $ERR = NULL;
            if (!$validFormat || !$passCheck) $ERR[] = "Invalid card number";
            if (!$validCVV) $ERR[] = "Invalid CVV2/CVC2 Number";
            if (!$validExp) $ERR[] = "Credit card has been expired";
            if ($testCard) $ERR[] = "Reserved card number";
            return $ERR;
        }
    }
}
?>

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<?php class CCVal

{

var $__ccType = '';

var $__ccNum = '';

var $__ccExpM = 0;

var $__ccExpY = 0;

var $__ccCVV = '';

function CCVal($num, $expm, $expy, $cvv)

{

if (!empty($num))

{

$cardNumber = ereg_replace("[^0-9]", "", $num);

if (!empty($cardNumber))

{

$this - >

__ccNum = $cardNumber;

}

if (!empty($cvv))

{

$cardCVV = ereg_replace("[^0-9]", "", $cvv);

if (!empty($cardCVV))

{

$this - >

__ccCVV = $cardCVV;

}

if (!is_numeric($expm) || $expm & lt;

1 || $expm & gt;

12)

{

$this - >

__ccExpM = NULL;

}

else

{

$this - >

__ccExpM = $expm;

}

$currentYear = date('Y');

settype($currentYear, 'integer');

$expy = $expy + 2000;

if (!is_numeric($expy) || $expy & lt;

$currentYear || $expy & gt;

$currentYear + 15)

{

$this - >

__ccExpY = NULL;

}

else

{

$this - >

__ccExpY = $expy;

}

if (ereg("^5[1-5][0-9]{14}$", $this - >

__ccNum))

{

$this - >

__ccType = MASTERCARD;

}

elseif (ereg("^4[0-9]{12}([0-9]{3})?$", $this - >

__ccNum))

{

$this - >

__ccType = VISA;

}

elseif (ereg("^3[47][0-9]{13}$", $this - >

__ccNum))

{

$this - >

__ccType = AMEX;

}

elseif (ereg("^3(0[0-5]|[68][0-9])[0-9]{11}$", $this - >

__ccNum))

{

$this - >

__ccType = DINNERS;

}

elseif (ereg("^6011[0-9]{12}$", $this - >

__ccNum))

{

$this - >

__ccType = DISCOVER;

}

elseif (ereg("^(3[0-9]{4}|2131|1800)[0-9]{11}$", $this - >

__ccNum))

{

$this - >

__ccType = JCB;

}

elseif (ereg("^(5[06-8]|6)[0-9]{10,17}$", $this - >

__ccNum))

{

$this - >

__ccType = MAESTRO;

}

else

{

$this - >

__ccType = UNKNOWN;

}

function IsValid()

{

$validFormat = false;

$validExp = false;

$passCheck = false;

$validCVV = false;

$testCard = false;

switch ($this - >

__ccType)

{

case MASTERCARD:

$validFormat = true;

break;

case VISA:

$validFormat = true;

break;

case AMEX:

$validFormat = true;

break;

case DISCOVER:

$validFormat = true;

break;

case DINNERS:

$validFormat = true;

break;

case JCB:

$validFormat = true;

break;

case MAESTRO:

$validFormat = true;

break;

default:

$validFormat = false;

}

$cardExpM = $this - >

__ccExpM;

$cardExpY = $this - >

__ccExpY;

if ($cardExpM & amp; & amp;

$cardExpY & amp; & amp;

date('Ym') & lt; = $cardExpY . $cardExpM)

{

$validExp = true;

}

$cardCVV = $this - >

__ccCVV;

if ($cardCVV & amp; & amp;

(strlen($cardCVV) == 3 & amp; & amp;

$this - >

__ccType != AMEX))

{

$validCVV = true;

}

elseif ($cardCVV & amp; & amp;

(strlen($cardCVV) == 4 & amp; & amp;

$this - >

__ccType == AMEX))

{

$validCVV = true;

}

$cardNumber = strrev($this - >

__ccNum);

$numSum = 0;

for ($i = 0;$i & lt;strlen($cardNumber);$i++)

{

$currentNum = substr($cardNumber, $i, 1);

if ($i % 2 == 1)

{

$currentNum *= 2;

}

if ($currentNum & gt;

{

$firstNum = $currentNum % 10;

$secondNum = ($currentNum - $firstNum) / 10;

$currentNum = $firstNum + $secondNum;

}

$numSum += $currentNum;

}

$passCheck = ($numSum % 10 == 0);

$testCard = in_array($this - >

__ccNum, array(

'340000000000009',

'341111111111111',

'343434343434343',

'346827630435344',

'370000000000002',

'370000200000000',

'370407269909809',

'370556019309221',

'371449635398431',

'374200000000004',

'376462280921451',

'377752749896404',

'378282246310005',

'378734493671000',

'30000000000004',

'30569309025904',

'5019717010103742',

'30204169322643',

'30218047196557',

'30221511563252',

'36000000000008',

'36148900647913',

'36700102000000',

'38000000000006',

'38520000023237',

'6011000000000004',

'6011000000000012',

'6011000400000000',

'6011000990139424',

'6011111111111117',

'6011153216371980',

'6011601160116611',

'6011687482564166',

'6011814836905651',

'201400000000009',

'201481123699422',

'214925980592653',

'214983972181233',

'180001638277392',

'180040153546898',

'180058601526635',

'3528000700000000',

'3528723740022896',

'3530111333300000',

'3566002020360505',

'3569990000000009',

'630495060000000000',

'6304900017740292441',

'6333333333333333336',

'5100080000000000',

'5105105105105100',

'5111111111111118',

'5123619745395853',

'5138495125550554',

'5274576394259961',

'5301745529138831',

'5311531286000465',

'5364587011785834',

'5404000000000001',

'5424000000000015',

'5431111111111111',

'5454545454545454',

'5459886265631843',

'5460506048039935',

'5500000000000004',

'5500939178004613',

'5555555555554444',

'5565552064481449',

'5597507644910558',

'6334580500000000',

'6334900000000005',

'633473060000000000',

'6767622222222222222',

'6767676767676767671',

'5641820000000005',

'6331101999990016',

'6759649826438453',

'4007000000027',

'4012888818888',

'4024007127653',

'4222222222222',

'4556069275201',

'4556381812806',

'4911830000000',

'4916183935082',

'4916603452528',

'4929000000006',

'4005550000000019',

'4012888888881881',

'4111111111111111',

'4444333322221111',

'4539105011539664',

'4544182174537267',

'4716914706534228',

'4916541713757159',

'4916615639346972',

'4917610000000000',

'4406080400000000',

'4462000000000003',

'4462030000000000',

'4917300000000008',

'4917300800000000',

'4484070000000000',

'4485680502719433'

));

if ($validFormat & amp; & amp;

$validExp & amp; & amp;

$validCVV & amp; & amp;

$passCheck & amp; & amp;

!$testCard)

{

return array(

"valid",

$this - >

__ccType,

$this - >

__ccNum,

$this - >

__ccCVV

);

}

else

{

$ERR = NULL;

if (!$validFormat || !$passCheck) $ERR[] = "Invalid card number";

if (!$validCVV) $ERR[] = "Invalid CVV2/CVC2 Number";

if (!$validExp) $ERR[] = "Credit card has been expired";

if ($testCard) $ERR[] = "Reserved card number";

return $ERR;

}

PHP Currency Converter

August 18, 2011 PHP, Programming

Here is another PHP code snippet from my library. This PHP function allows you to calculate exchange amounts between 49 countries and 33 currencies.

Function is based on the live conversion reference rates provided by European Central Bank.

Usage

First 3 parameters are required. First one is the origin currency and the second one is target currency.
First 2 parameters should be the same type. If you are doing a county code based conversion both must be country codes. If you are doing currency code based conversion, both should be currency codes.
3rd parameter is the amount you want to be converted. Should be decimal digits without any currency signs or codes attached to it.
4th parameter is optional and set as true by default. When enabled function will prepend or append the currency sign (or code) to the output amount. You may want to turn that off if you will use the returned amount in a calculation.
5th and the last parameter is calculation precision. Controls the number of digits after the decimal point. Default is 5.

Usage Samples

currency_convert(“EUR”,”USD”,100)
currency_convert(“FR”,”GB”,98);
currency_convert(“AUD”,”CNY”,145,false,8);
currency_convert(“GR”,”DK”,3500,true,2);

Download

Download PHP code snippet
Code is PHP5 compatible but it should also work on PHP4 (Untested)

License

<?php
// Realtime currency converter by Pixel Envision (E.Gonenc)
// Version 1.0 - 18 August 2011
// Based on the live conversion reference rates provided by European Central Bank
// http://www.ecb.europa.eu/
function currency_convert($from, $to, $amount, $sign = true, $sensitivity = 5)
{
    $RATES = $BASE = $in = $out = $append = NULL;

    //Array of available countries & currencies
    $CURRENCY = array(
        "US" => "USD",
        "BE" => "EUR",
        "ES" => "EUR",
        "LU" => "EUR",
        "PT" => "EUR",
        "DE" => "EUR",
        "FR" => "EUR",
        "MT" => "EUR",
        "SI" => "EUR",
        "IE" => "EUR",
        "IT" => "EUR",
        "NL" => "EUR",
        "SK" => "EUR",
        "GR" => "EUR",
        "CY" => "EUR",
        "AT" => "EUR",
        "FI" => "EUR",
        "JP" => "JPY",
        "BG" => "BGN",
        "CZ" => "CZK",
        "DK" => "DKK",
        "EE" => "EEK",
        "GB" => "GBP",
        "HU" => "HUF",
        "LT" => "LTL",
        "LV" => "LVL",
        "PL" => "PLN",
        "RO" => "RON",
        "SE" => "SEK",
        "CH" => "CHF",
        "NO" => "NOK",
        "HR" => "HRK",
        "RU" => "RUB",
        "TR" => "TRY",
        "AU" => "AUD",
        "BR" => "BRL",
        "CA" => "CAD",
        "CN" => "CNY",
        "HK" => "HKD",
        "ID" => "IDR",
        "IN" => "INR",
        "KR" => "KRW",
        "MX" => "MXN",
        "MY" => "MYR",
        "NZ" => "NZD",
        "PH" => "PHP",
        "SG" => "SGD",
        "TH" => "THB",
        "ZA" => "ZAR"
    );

    if (strlen($from) == 2 && strlen($to) == 2)
    { //Operate using country code
        if (isset($CURRENCY[$from]))
        {
            $in = $CURRENCY[$from];
        }
        if (isset($CURRENCY[$to]))
        {
            $out = $CURRENCY[$to];
        }
    }
    elseif (strlen($from) == 3 && strlen($to) == 3)
    { //Operate using currency code
        if (in_array($from, $CURRENCY))
        {
            $in = $from;
        }
        if (in_array($to, $CURRENCY))
        {
            $out = $to;
        }
    }
    else
    {
        echo "Error: You should either use 2 digit country codes or 3 digit currency codes!";
    }

    if ($in && $out)
    { //Both currencies available, continue
        //Load live conversion rates and set as an array
        $XMLContent = file("http://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml");
        if (is_array($XMLContent))
        {
            foreach ($XMLContent as $line)
            {
                if (ereg("currency='([[:alpha:]]+)'", $line, $currencyCode))
                {
                    if (ereg("rate='([[:graph:]]+)'", $line, $rate))
                    {
                        $RATES[$currencyCode[1]] = $rate[1];
                    }
                }
            }
        }
        if (is_array($RATES))
        {

            $RATES["EUR"] = 1; //Add EUR reference to array
            if ($in != "EUR")
            { //Normalize rate to given input
                $BASE = $RATES[$in];
                foreach ($RATES as $code => $rate)
                {
                    $RATES[$code] = round($rate / $BASE, $sensitivity);
                }
            }

            //Prepend or append the currency information
            if ($sign)
            {
                if ($out == "USD")
                {
                    echo "$";
                }
                elseif ($out == "EUR")
                {
                    echo "&euro;";
                }
                elseif ($out == "GBP")
                {
                    echo "&pound;";
                }
                elseif ($out == "JPY")
                {
                    echo "&yen;";
                }
                else
                {
                    $append = $out;
                }
            }

            echo round($amount * $RATES[$out], $sensitivity); //Output the converted amount
            if ($append)
            {
                echo " " . $append;
            }

        }
        else
        {
            echo "Error: Unable to load conversion rates!";
        }

    }
    else
    {
        echo "Error: Either one or both of given currencies are not available for conversion!";
    }
}

echo currency_convert("EUR", "USD", 1);
?>

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<?php

// Realtime currency converter by Pixel Envision (E.Gonenc)

// Version 1.0 - 18 August 2011

// Based on the live conversion reference rates provided by European Central Bank

// http://www.ecb.europa.eu/

function currency_convert($from, $to, $amount, $sign = true, $sensitivity = 5)

{

$RATES = $BASE = $in = $out = $append = NULL;

//Array of available countries & currencies

$CURRENCY = array(

"US" => "USD",

"BE" => "EUR",

"ES" => "EUR",

"LU" => "EUR",

"PT" => "EUR",

"DE" => "EUR",

"FR" => "EUR",

"MT" => "EUR",

"SI" => "EUR",

"IE" => "EUR",

"IT" => "EUR",

"NL" => "EUR",

"SK" => "EUR",

"GR" => "EUR",

"CY" => "EUR",

"AT" => "EUR",

"FI" => "EUR",

"JP" => "JPY",

"BG" => "BGN",

"CZ" => "CZK",

"DK" => "DKK",

"EE" => "EEK",

"GB" => "GBP",

"HU" => "HUF",

"LT" => "LTL",

"LV" => "LVL",

"PL" => "PLN",

"RO" => "RON",

"SE" => "SEK",

"CH" => "CHF",

"NO" => "NOK",

"HR" => "HRK",

"RU" => "RUB",

"TR" => "TRY",

"AU" => "AUD",

"BR" => "BRL",

"CA" => "CAD",

"CN" => "CNY",

"HK" => "HKD",

"ID" => "IDR",

"IN" => "INR",

"KR" => "KRW",

"MX" => "MXN",

"MY" => "MYR",

"NZ" => "NZD",

"PH" => "PHP",

"SG" => "SGD",

"TH" => "THB",

"ZA" => "ZAR"

);

if (strlen($from) == 2 && strlen($to) == 2)

{ //Operate using country code

if (isset($CURRENCY[$from]))

{

$in = $CURRENCY[$from];

}

if (isset($CURRENCY[$to]))

{

$out = $CURRENCY[$to];

}

elseif (strlen($from) == 3 && strlen($to) == 3)

{ //Operate using currency code

if (in_array($from, $CURRENCY))

{

$in = $from;

}

if (in_array($to, $CURRENCY))

{

$out = $to;

}

else

{

echo "Error: You should either use 2 digit country codes or 3 digit currency codes!";

}

if ($in && $out)

{ //Both currencies available, continue

//Load live conversion rates and set as an array

$XMLContent = file("http://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml");

if (is_array($XMLContent))

{

foreach ($XMLContent as $line)

{

if (ereg("currency='([[:alpha:]]+)'", $line, $currencyCode))

{

if (ereg("rate='([[:graph:]]+)'", $line, $rate))

{

$RATES[$currencyCode[1]] = $rate[1];

}

if (is_array($RATES))

{

$RATES["EUR"] = 1; //Add EUR reference to array

if ($in != "EUR")

{ //Normalize rate to given input

$BASE = $RATES[$in];

foreach ($RATES as $code => $rate)

{

$RATES[$code] = round($rate / $BASE, $sensitivity);

}

//Prepend or append the currency information

if ($sign)

{

if ($out == "USD")

{

echo "$";

}

elseif ($out == "EUR")

{

echo "€";

}

elseif ($out == "GBP")

{

echo "£";

}

elseif ($out == "JPY")

{

echo "¥";

}

else

{

$append = $out;

}

echo round($amount * $RATES[$out], $sensitivity); //Output the converted amount

if ($append)

{

echo " " . $append;

}

else

{

echo "Error: Unable to load conversion rates!";

}

else

{

echo "Error: Either one or both of given currencies are not available for conversion!";

}

echo currency_convert("EUR", "USD", 1);

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