<?
$var = 2147483648;

settype($var, 'integer');     // SIGFPE
echo gettype($var).':'.$var;

//-or-

$var = 2147483648;
settype($var, 'string');
settype($var, 'integer');     // now NO SIGFPE
echo gettype($var).':'.$var;  //var == 2147483647

?>

*Note the cast from long I find this error will happen any
time this is done.  there are a few castings like this throughout zend_operator.c.



Program received signal SIGFPE, Arithmetic exception.
0x809cbea in convert_to_long_base (op=0x821358c, base=10)
    at zend_operators.c:203
203                             op->value.lval = (long) op->value.dval;
(gdb) backtrace
#0  0x809cbea in convert_to_long_base (op=0x821358c, base=10)
    at zend_operators.c:203
#1  0x809cb95 in convert_to_long (op=0x821358c) at zend_operators.c:185
#2  0x80c3079 in php_if_settype (ht=2, return_value=0x82135ac, this_ptr=0x0,
    return_value_used=0) at basic_functions.c:1057
#3  0x80f82fd in execute (op_array=0x8211e0c) at ./zend_execute.c:1574
#4  0x8090b29 in php_execute_script (primary_file=0xbfbfd5d0) at main.c:1200
#5  0x80a9c3d in apache_php_module_main (r=0x821a034, fd=30,
    display_source_mode=0) at sapi_apache.c:93
#6  0x808d18e in send_php ()
#7  0x808d1d0 in send_parsed_php ()
#8  0x8117f7b in ap_invoke_handler ()
#9  0x812aa01 in process_request_internal ()
#10 0x812aa60 in ap_process_request ()
#11 0x81224a9 in child_main ()
#12 0x8122634 in make_child ()
#13 0x812278f in startup_children ()
#14 0x8122d40 in standalone_main ()
#15 0x8123593 in main ()
#16 0x8060829 in _start ()