Call to undefined function

Question

I am trying to call a method from a different class in a different file. However, When I run the code i get the following error:

Fatal error: Call to undefined function getFxRate() in fxCalc.php

Here is the code I am trying to build:

fxCalc.php

//call fxDataModel class
require_once('fxDataModel.php');
$fxRate = getFxRate($inputCurrency, $outputCurrency);
$txtOutput = $txtInput * $fxRate;

fxDataModel.php

   public static function getFxRate($inputCurrency, $outputCurrency)
    {
        $fxRate = $currencies[$inputCurrency][$outputCurrency];
        return $fxRate;
    }

Any help would be appreciated.

The function getFxRate() is a static method of another class. You need to call it as OtherClassName::getFxRate($inputCurrency, $outputCurrency) — Michael Berkowski
– Michael Berkowski, Commented Feb 23, 2014 at 2:19
@MichaelBerkowski I think that would be a better answer than a comment — Blue Ice
– Blue Ice, Commented Feb 23, 2014 at 2:20

Shankar Narayana Damodaran · Accepted Answer · 2014-02-23 02:28:28Z

2

Say if your name of the class infxDataModel.php is FxModel

Then you need to call your method like

$fxRate = FxModel::getFxRate($inputCurrency, $outputCurrency);

instead of

$fxRate = getFxRate($inputCurrency, $outputCurrency);

That is because your function is declared as static. The static calls are made by using :: operator followed by the class name.

edited Feb 23, 2014 at 2:28

answered Feb 23, 2014 at 2:22

Shankar Narayana Damodaran

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