> [EMAIL PROTECTED] wrote:
>
>> Hmm i was checking out a pear class, what about the variables within a
>> function ? like function
>>
>> foo($name) {
>> if ($name) {
>>
>> }
>> }
>>
>> or
>>
>> foo($name) {
>> if (isset($name)) {
>>
>> }
>> }
>>
>> it uses isset on variables coming outside the function
>>
>
> Those examples don't make much sense. Without a default value, if foo()
> is called without a parameter, then it'll cause an error. So,
> obviously $name is going to be set. So isset() will always be true.
> if($name) is a valid check, I guess, since an empty string or zero
> could be passed and cause that to fail. It'd make more sense to set a
> default value for $name or check for an actual value instead of just
> seeing if
> (boolean)$name is TRUE or FALSE.
I dont understand, i assume that would check if name was set, i also set
functions like
function foo($name,$bar = null) {
}
so therefore bar doesnt need to be inputted, seeing as i set it to null
would i check if $bar===true ? or just isset($bar ) ?
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