What to do if gettext is not available?
As you can't assume that gettext is available and you
want your app to work in all environments, you should
provide a gettext "emulation":
function _( $strString){return $strString;}
function bindtextdomain( $strString){return $strString;}
function dcgettext( $strDomain, $strString, $nCategory){ return $strString;}
function dgettext( $strDomain, $strMessage) { return $strString;}
function gettext( $strString){return $strString;}
function textdomain( $strString){return $strString;}
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Replace the line
die( 'gettext extension is not available!');
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with the code above, and the gettext functions will be
available even if gettext is not installed. They just
return the original text, so that the apps will be in
the original language.
In message boxes you ask the user
"There is a file "{FILENAME}". What shall I do with it?".
The {FILENAME} could be on a totally
different position in one of the target languages, so
splitting the string is not an option.
The solution is to replace the "{FILENAME}" with "%s" and
use the sprintf() php function with the
string. That way your strings are as portable as possible.
Strings with multiple lines
Sometimes you need to translate strings which are on multiple
lines: They are noted in .po files
on multiple lines as well, with quotes at the beginning
and the end of a line. The first line is just a
"".
msgid ""
"this is a"
"multiline string"
msgstr ""
"Dies ist ein"
"mehrzeiliger String"
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