Re: constant from variable

From: Date: Fri, 04 Jun 2010 19:42:19 +0000
Subject: Re: constant from variable
References: 1 2  Groups: php.general 
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"Ashley Sheridan" <ash@ashleysheridan.co.uk> wrote in message news:1275678975.2217.83.camel@localhost... > On Fri, 2010-06-04 at 22:07 +0300, Tanel Tammik wrote: > >> Hi, >> >> define('MYCONST', 'something'); >> >> $my = 'my'; >> $const = 'const'; >> >> >> is it possible to get the value of MYCONST using variables $my and >> $const_ >> >> Br >> Tanel >> >> >> > > > I don't really see how you can? The only correlation at all is that the > two variables use the same letters combined as their values as the name > of the constant but in a different case. Variables and constants in PHP > are case-sensitive. > > Why are you trying to do this anyway? Perhaps there's a better way than > what you are trying to do. > > Thanks, > Ash > http://www.ashleysheridan.co.uk > > > <?php define('PERFIX', 'dbperfix_'); define('DB_MYTABLE', PERFIX . 'mytable'); abstract class Database { private static function table_name() { $table_name = strtolower(get_called_class()); return constant('DB_' . strtoupper($table_name)); } public static function return_query() { return "select * from " . static::table_name() . " where something='value'"; } } class MyTable extends Database { } echo MyTable::return_query(); ?> i know i could just do return PERFIX . $table_name. - i'm using it that way. i was just curious if the other way is possible. might come handy some day! Br Tanel

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