PHP: Illegal offset type while generating an array from xml

Question

Why am I getting Illegal offset type error while trying to build an array?

function tassi_parser() {
    $xml=simplexml_load_file('http://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml');
    foreach($xml->Cube->Cube->Cube as $tmp) {
        $results[$tmp['currency']] = $tmp['rate'];
    };
    return $results;
};

$tmp['currency'] correctly contains a string that should be used as key so i can't understand what is the problem...

Truong Hua · Accepted Answer · 2015-01-08 18:37:27Z

2

simplexml_load_file return SimpleXMLElement and every xml element will be an object. Therefore, the type of your $tmp in foreach is "object" (not string), so you need to cast it to string as follows:

(string)$tmp['currency']

You could use the gettype function to retrieve the type of something: http://php.net/manual/en/function.gettype.php

answered Jan 8, 2015 at 18:37

Truong Hua

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1 Comment

Rizier123 Over a year ago

@Mariano What? Seriously?! I wrote that 15 minutes before this answer!

Rizier123 · Accepted Answer · 2015-01-08 18:32:59Z

1

You have to cast it to string like this:

$results[(string)$tmp['currency']] = (string)$tmp['rate'];

Also the ; at the end of the foreach and the function isn't necessary!

answered Jan 8, 2015 at 18:32

Rizier123

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