Exceptions

Invalid argument exception

NumPhp raises an InvalidArgumentExceptionwhen something goes wrong with a method call. A good practice is to catch them.


use SciPhp\NumPhp as np;

try
{
  $m = np::ar([1, 2, 3])->log(-1);
}
catch(\InvalidArgumentException $e)
{
  echo "{$e->getMessage()}\n";

  exit(1);
}

The above example will output:

Expected a value greater than 0. Got: -1

Invalid attribute exception

NdArray raises an SciPhp\Exception\InvalidAttributeExceptionwhen a call is made for an unexisting attribute.


use SciPhp\NumPhp as np;
use SciPhp\Exception\InvalidAttributeException;

try
{
  $m = np::ar([1, 2, 3])->notExistingAttribute;
}
catch(InvalidAttributeException $e)
{
  echo "{$e->getMessage()}\n";

  exit(1);
}

The above example will output:

Attribute "notExistingAttribute" is not defined.