autoload does not call class

[freefony]

 
function __autoload($class){
 
  include(trim(str_replace('_','/',$class)).'.php';
  if(class_exist){ echo 'my class exists\n'; }
 throw new Exception('class cannot be loaded');
}
 
try{
  new dir_to_myclass();
}catch(exception $e){
  echo $e->getmessage();
}
 

dir/to/myclass.php

 
echo "here<br/>";
 
class mycalss {
 
  public function __contruct { echo 'myclass instatiated'; }}
 

outputs:
myclass exists
here
class cannot be loaded

why is autoload not instatiating myclass?

[YarrOfDoom]

Because you misspelled "myclass" in dir/to/myclass.php?
I've also got a feeling it's going to try to create a dir_to_myclass-object rather than a myclass-object.

[freefony]

thanks YarrofDoom i got it working i removed the try,catch block and it works just fine i dont know why a try block should stop autoloader from calling the class