Question

Hello this is the cod I am using but as the author said it runs on PHP 5.3
I am using 5.2.17 I guess this is why I have this error Parse error: syntax error, unexpected T_FUNCTION on line 14 (usort($entries, function ($x, $y) {)

What can I do about it ?

$feeds = array(
    'http://www.example.org/feed1.rss',
    'http://www.example.org/feed2.rss'
);

// Get all feed entries
$entries = array();
foreach ($feeds as $feed) {
    $xml = simplexml_load_file($feed);
    $entries = array_merge($entries, $xml->xpath('/rss//item'));
}

// Sort feed entries by pubDate (ascending)
usort($entries, function ($x, $y) {
    return strtotime($x->pubDate) - strtotime($y->pubDate);
});

print_r($entries);

Answer 1

It’s because that code is using a lamba function.

To accomplish this in pre 5.3, you could simply define the function and pass the function name as the argument, i.e.,

function mySort($x, $y) {
    return strtotime($x->pubDate) - strtotime($y->pubDate);
}

usort($entries, 'mySort');

or create the function using create_function()