I found this issue when trying to get doxygen to parse my php page, finding
that it would parse everything up until I got to a line like this:

$foo = "TABLE.field='".$bar['var']."'";

which boils down to "'"''"'"
READ:
double-quote,single-quote,double-quote,single-quote,single-quote,double-quote,single-quote

All data is processed normally until it hits one of these strings, at which
point it seems to bail out of processing with no warning. This happens on
any type of file, I verified it by creating a sample C file with the same
string, it produced the what I expected.

I am using doxygen 1.3.2
sid/debian linux 2.4.20, intel P3

Below is a full sample of the how to recreate the bug (producing only html
information for main() and not foo()):
/*! \file test.c
** \brief foobar
**
*/

/*!
**
** test
*/
int main(){
return 2;
}

/*!
** foo is a function
*/
int foo(){
return 3;
}