Re: Experience/Function Aliases (Was:Re: [PHP-DEV] PHP FileUpload Security Hole - Still No Fix?

----- Original Message ----- From: "Ron Chmara" <ron@Opus1.COM> To: "Zak Greant" <zak@freeimages.com> Cc: <php-dev@lists.php.net> Sent: Wednesday, September 06, 2000 11:53 PM Subject: Re: [PHP-DEV] Experience/Function Aliases (Was:Re: [PHP-DEV] PHP FileUpload Security Hole - Still No Fix? > Zak Greant wrote: > > > Such as: > > > myaliases.inc---- > > > /* may need to put some special "flag" char in front > > > * so they are picked up easily, such as ~, as in > > "~htment()" > > > */ > > > alias (htmlentities, htment) > > > alias (get_html_translation_table, ghtt) > > > alias (quoted_printable_decode, qpd) > > > > :) Ah, the feature already (sort-of) exists: > > > > $htmlent = 'htmlentities'; > > print $htmlent ('" should be converted to &quot; & should be > > converted to &amp;'); > > Hm. A page filled with print statements? And what about aliasing: > > alias (print, pr); > alias (echo, ec); // my most used function, one less char than print. > > An amusing recursion happens: > > $ec = 'echo'; > $pr = 'print'; > print $pr ("hello, world"); /* Heh. */ > print $ec ("hello, world"); > > Even with two letter function aliases, it still adds 7 chars to > typing every function (print $).... which doesn't really help > to shorten function calling if you're trying to shorten a 9 > char function (let alone a 4-5 char function) down.... errrr... no :o) I should have been more explicit. If php sees a variable in front of parenthesis, it uses the value stored in the variable as a function name. This interpolation works with functions - but does not work with language constructs like print, echo or array. Also, you cannot do this interpolation using constants. i.e. <? $pf = 'printf'; $pf ('test'); # works $_ = 'print'; $_ 'test'; # chokes ?> Zak