Re: Re: PDO Exceptions

On 4/24/2013 10:04 AM, Lars Nielsen wrote:
>> On 4/24/2013 9:43 AM, Lars Nielsen wrote:
>>>> On 4/22/2013 11:55 AM, Onatawahtaw wrote:
>>>>> Greetings,
>>>>>
>>>>> I am new to this list. I have a question about which functions need to
>>>>> be included in a try block.
>>>>>
>>>>> Of "new PDO", "prepare", "bindParam", "execute", "fetch", and "query",
>>>>> it seems that bindParam is the only one that throws an exception. So
>>>>> is
>>>>> this the only that needs to be put into a try block?
>>>>>
>>>>> Thanks,
>>>>>
>>>>> -KJW
>>>>> Proverbs 3:5-6
>>>>>
>>>> Since nobody else has offered anything, I'll give you my impression of
>>>> how a try handles things.
>>>>
>>>> If the statement(s) within the try block fail in any way (such as
>>>> simply
>>>> returning a 'false' value), the try block's catch will be executed.  So
>>>> while the items you specified do not "throw an exception", I believe
>>>> the
>>>> try will still handle a failure of those functions.
>>>>
>>>> Of course, if I'm wrong, I'm positive we'll start seeing responses to
>>>> your question.  :)
>>>>
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>>>>
>>> Hi Jim,
>>>
>>> I agree that failures would normally be catched as an exception. But how
>>> do/can you determine if "false" is a failure?
>>>
>>> /Lars
>>>
>> It's not a question of Me determining that.  If the original function
>> returned "false" then the try should catch it and in your 'catch' block
>> you can display a message and show the php error.  In the case where you
>> expect a 'false' return, then just reverse your try condition, and
>> display the appropriate message (without a php error messsage).  Or even
>> simpler, just use an If statement.
>>
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>>
>>
> If the functions inside your try block doesnt throw anything, then your
> code will not enter the catchblock. It does not depend on what your
> function return, but what they throw.
> /Lars
>
If that is true then  I learned something today.  :)

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