7 try { var_dump(sqrt('foo')); } catch (Exception
$e) { echo "\n".'Warning: '.$e->getMessage().' in '.__FILE__
.' on line '.__LINE__
."\n"; }
8 try { var_dump(sqrt('16')); } catch (Exception
$e) { echo "\n".'Warning: '.$e->getMessage().' in '.__FILE__
.' on line '.__LINE__
."\n"; }
9 try { var_dump(sqrt(varray
[])); } catch (Exception
$e) { echo "\n".'Warning: '.$e->getMessage().' in '.__FILE__
.' on line '.__LINE__
."\n"; }