Greetings, Ashley Sheridan.
In reply to Your message dated Wednesday, October 8, 2008, 23:08:37,
>> > If you're using it to deal with possible empty input data, you'd better do it
>> > explicitly enstead.
>> >
>> > Something like this:
>> >
>> > if(!array_key_exists('from_year', $_POST)
>> > || !array_key_exists('from_month', $_POST)
>> > || !array_key_exists('from_day', $_POST)
>> > )
>> > {
>> > throw new Exception('No start date given', 100);
>> > }
>>
>> *cough*
>>
>> filter_input does this elegantly too ;) as does an isset() on the array index
>>
> I'm a fan of the isset() method for POST and GET variables, as usually
> I'll still want to put something in the variables I'm assigning those
> values to, rather than the NULL which gets returned by the @ prefix.
Well, filter_input does not exist in 5.1.6, and iset() does not work correctly
with array keys in general.
<?php
$a = array ('test' => 1, 'hello' => NULL);
var_dump(isset($a['test'])); // TRUE
var_dump(isset($a['foo'])); // FALSE
var_dump(isset($a['hello'])); // FALSE
// The key 'hello' equals NULL so is considered unset
// If you want to check for NULL key values then try:
var_dump(array_key_exists('hello', $a)); // TRUE
?>
(c) http://php.net/isset
--
Sincerely Yours, ANR Daemon <anrdaemon@xxxxxxxxxxx>
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