On Mon, 22 Oct 2001 16:47:56 +0200, you wrote:
>On Monday 22 October 2001 14:28, David Otton wrote:
>> why does this work:
>>
>> foreach ($table as $row)
>> list ($a, $b) = $row;
>>
>> but this doesn't?
>>
>> foreach ($table as list ($a, $b));
>
>because the correct syntax is
> foreach ($table as $key => $val) {
> ...
> }
>RTFM :)
Well... no. The manual says "There are two syntaxes; the second is a
minor but useful extension of the first:
foreach(array_expression as $value) statement
foreach(array_expression as $key => $value) statement"
Ok, let me rewrite my examples, so they're definitely not about
dictionaries :
$table is an array of arrays. Each inner array has three values.
Roughly.... $table = ((1,2,3),(4,5,6),(7,8,9))
foreach ($table as $row)
list ($a, $b, $c) = $row;
foreach ($table as list($a, $b, $c));
I still don't see what it is about list() that precludes it's use in
this way. Anyone?
>BTW: overwriting $a, $b in each iteration isn't particularly useful...
But it is a minimal example of the construct I don't understand.
djo
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