XML error at ampersand (&)

Question

I have a php file which prints an xml based on a MySql db.

I get an error every time at exactly the point where there is an & sign.

Here

Answer 1

& in XML starts an entity. As you haven't defined an entity &WhateverIsAfterThat an error is thrown. You should escape it with &.

$string = str_replace('&', '&', $string);

How do I escape ampersands in XML

To escape the other reserved characters:

function xmlEscape($string) {
    return str_replace(array('&', '<', '>', '\'', '"'), array('&', '<', '>', ''', '"'), $string);
}