Everyone here should know the 'or' statemens, usually glued to an die() command:
$foo = bar() or die('Error: bar function return false.');
The most of the times we see something like:
mysql_query('SELECT ...') or die('Error in during the query');
However, i cant understand how exactly that 'or' statement works.
I would like to throw a new exception instead of die(), but:
try{
$foo = bar() or throw new Exception('We have a problem here');
Doesnt work, and neither
$foo = bar() or function(){ throw new Exception('We have a problem here'); }
The only way i found to do that is this horrible thought:
function ThrowMe($mess, $code){
throw new Exception($mess, $code);
}
try{
$foo = bar() or ThrowMe('We have a problem in here', 666);
}catch(Exception $e){
echo $e->getMessage();
}
But there is a way to throw a new exception directly after the 'or' statement?
Or this kind of structure is mandatory (i dont liek the ThrowMe function at all):
try{
$foo = bar();
if(!$foo){
throw new Exception('We have a problem in here');
}
}catch(Exception $e){
echo $e->getMessage();
}
Edit: what i want is really to avoid the use of an if() check every potential dangerous operation i do, for example:
#The echo $e->getMessage(); is just an example, in real life this have no sense!
try{
$foo = bar();
if(!$foo){
throw new Exception('Problems with bar()');
}
$aa = bb($foo);
if(!$aa){
throw new Exception('Problems with bb()');
}
//...and so on!
}catch(Exception $e){
echo $e->getMessage();
}
#But i relly prefer to use something like:
try{
$foo = bar() or throw new Exception('Problems with bar()');
$aa = bb($foo) or throw new Exception('Problems with bb()');
//...and so on!
}catch(Exception $e){
echo $e->getMessage();
}
#Actually, the only way i figured out is:
try{
$foo = bar() or throw new ThrowMe('Problems with bar()', 1);
$aa = bb($foo) or throw new ThrowMe('Problems with bb()', 2);
//...and so on!
}catch(Exception $e){
echo $e->getMessage();
}
#But i'll love to thro the exception directly instead of trick it with ThrowMe function.