First create a default definition file.
<?php
define('SAMPLE_HELLO', 'Hey');
define('SAMPLE_EX', 'This is example number %d!');
?>
Then create your PHP script which utilizes those defines.
<?php
switch ($argv[1]) {
case 'de':
include_once('./simple_defs_de.php');
break;
case 'en':
default:
include_once('./simple_defs_en.php');
break;
}
print SAMPLE_HELLO;
print "\n<br>\n";
print sprintf(SAMPLE_EX, 1);
?>
Then copy over your english translation to the language translation you wish
to make (in this case German).
]$ cp sample_defs_en.php sample_defs_de.php
And then edit the file, with the desired translations.
<?php
define('SAMPLE_HELLO', 'Hoi');
define('SAMPLE_EX', 'Dass ist Beispiel Nummer %d!');
?>