Re: cvs: php4 /pear/scripts pear.in

["Tomas V.V.Cox" <cox@idecnet.com>] > Stig Sæther Bakken wrote: > > > > ["Thomas V.V.Cox" <cox@idecnet.com>] > > > + if ($param[0] != DIRECTORY_SEPARATOR) { > > > > I think $param{0} is the correct syntax here (although the above > > works, it's not recommended). > > > > Sorry Stig, I don't understand you here. $param is a string and > $param[0] is the first char, why use "{}"? I thought that {} was only > for escape vars inside a string. > > This is documented in the manual language.types.string.html: > /* Get the first character of a string */ > $str = 'This is a test.'; > $first = $str[0]; This syntax is ambiguous; $str may be an array or a string, and PHP has to evaluate the difference at execution time. If you do $first = $str{0}; ..the parser knows at compile time that $str is a string and you want a character index. The {} characters are used inside double-quoted strings too, but that's fine, the syntax is still unambiguous. - Stig -- Stig Sæther Bakken <ssb@fast.no> Fast Search & Transfer ASA, Trondheim, Norway