On Wed, 2009-10-28 at 18:18 +0100, Kim Madsen wrote:
> Hi Nick
>
> Nick Cooper wrote on 2009-10-28 17:29:
>
> > Thank you for the quick replies. I thought method 2 must be faster
> > because it doesn't have to search for variables in the string.
> >
> > So what is the advantages then of method 1 over 3, do the curly braces
> > mean anything?
> >
> > 1) $string = "foo{$bar}";
> >
> > 2) $string = 'foo'.$bar;
> >
> > 3) $string = "foo$bar";
> >
> > I must admit reading method 1 is easier, but writing method 2 is
> > quicker, is that the only purpose the curly braces serve?
>
> Yes, you're right about that. 10 years ago I went to a seminar were
> Rasmus Lerforf was speaking and asked him exactly that question. The
> single qoutes are preferred and are way faster because it doesn´t have
> to parse the string, only the glued variables.
>
> Also we discussed that if you´re doing a bunch of HTML code it's
> considerably faster to do:
>
> <tr>
> <td><?= $data ?></td>
> </tr>
>
> Than
> print "
> \n\t<tr>
> \n\t\t<td>$data</td>
> \n\t</tr>";
>
> or
> print '
> <tr>
> <td>'.$data.'</td>
> </tr>';
>
> I remember benchmark testing it afterwards back then and there was
> clearly a difference.
>
> --
> Kind regards
> Kim Emax - masterminds.dk
>
Or, far easier still to do:
print <<<EOC
<tr>
<td>$data</td>
</tr>
<tr>
<td>$data</td>
</tr>
EOC;
than:
<tr>
<td><?= $data ?></td>
</tr>
<tr>
<td><?= $data ?></td>
</tr>
Also, the use of short tags in the second example will almost certainly cause problems later on if you want to do anything with XML output from PHP.
Thanks,
Ash
http://www.ashleysheridan.co.uk
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