I have written a class with a method that uses the strpos() function,
but I can't get it to work. However, when I use the method as a
function in a simple test program that uses the identical code to
simulate the class method (and feed it the same strings) it works
exactly like I expect.
Below is an abbreviated version of the non-working method version.
However, both versions are identical to this point, only this doesn't
work while the test program version does. The problem is that the
while-loop never executes because $start always comes up false (but
only in the class version).
protected function extract_quotes($string)
// Assumes if $string has quotes they are an even number of them
// Uses class property $keywrd_frags to store parsed fragments
{
$delm = chr(34); // quote char in this case
// start parsing from first character of incoming query string
$start = strpos($string, $delm, 0); //<=== POINT OF FAILURE
while($start !== FALSE)
{
// the while loop extracts all the delimited blocks of text
// one at a time until there are none left. At that point
// $start will be false and $string will have only
// un-delimited text (or an empty string)
//This section never runs because $start is always FALSE
}
// No more delimited text, so return the remaining $string
return $string;
}
What am I overlooking in the class version that keeps the code from
working there?
Tried: I've tried 37 dozen different variations on this theme,
including dropping the $delim variable and using '"' in the strpos()
function. I've also used different delimiters, and even changed the
delimiter character once the string got into the extract_quotes()
function. No difference.
Running:
Apache Version : 2.2.17
PHP Version : 5.3.3
Thanks for any ideas,
Jonathan
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