Question

I have a invalid XML like this

Warning: count() [function.count]: Node no longer exists in /var/bla/test.php
<?xml version="1.0" encoding="ISO-8859-1"?>
<nodes>
<some>test</some>
</nodes>

Now i need a regex which would replace the Warning: count() [function.count]: Node no longer exists in /var/bla/test.php with ""
how can i do that?

The above xml is is not generated on my localmachine, its a api call which returned a invalid xml

Answer 1

Assuming you have to use a regular expression for some reason, this line of PHP removes everything from the start of the string until the first occurrence of <?xml:

$output = preg_replace('/\A.*?<\?xml/s', '<?xml', $input);