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copied!<p>According to <a href="http://www.siao2.com/2004/12/31/344739.aspx" rel="nofollow">this blog post</a>, for the words <strong>cote</strong>, <strong>coté</strong>, <strong>côte</strong> and <strong>côté</strong> (already sorted in English), the sorting order in French is: <strong>cote</strong>, <strong>côte</strong>, <strong>coté</strong> and <strong>côté</strong>. The code below sorts the words in the French collation:</p> <pre><code>$words = array('cote', 'coté', 'côte', 'côté'); print_r($words); $collator = new Collator('fr_FR'); // print info about locale echo 'French Collation ' . (($collator->getAttribute(Collator::FRENCH_COLLATION) == Collator::ON) ? 'On' : 'Off') . "\n"; echo $collator->getLocale(Locale::VALID_LOCALE) . "\n"; echo $collator->getLocale(Locale::ACTUAL_LOCALE) . "\n"; $collator->asort($words); print_r($words); </code></pre> <p>And the printed result is as follows:</p> <pre><code>Array ( [0] => cote [1] => coté [2] => côte [3] => côté ) French Collation On fr_FR fr Array ( [0] => cote [2] => côte [1] => coté [3] => côté ) </code></pre> <p>In the same blog post the author says:</p> <blockquote> <p>[...] diacritics are evaluated from right to left rather than from left to right. Thus <strong>côte</strong> comes before <strong>coté</strong>, rather than after it as it does in languages like English that evaluate them from left to right. Because the word <strong>côte</strong> has no ACUTE on the "e" at the end of the word while <strong>coté</strong> does. In English and most other languages, the evaluation starts on the left and therefore the CIRCUMFLEX or lack thereof on the "o" is the controlling factor in ordering.</p> </blockquote> <p>So, if you have an array with the words <strong>Spain</strong> and <strong>US</strong>, they will have the same order in English and French.</p> <p>You should also keep in mind that the <code>asort</code> method maintain the index association of the array. See the difference:</p> <pre><code>asort: Array ( [0] => cote [2] => côte [1] => coté [3] => côté ) sort: Array ( [0] => cote [1] => côte [2] => coté [3] => côté ) </code></pre> <h2>About U_USING_DEFAULT_WARNING</h2> <p>According to this <a href="http://www.icu-project.org/apiref/icu4c/classicu_1_1ResourceBundle.html" rel="nofollow">API documentation</a>:</p> <blockquote> <p>U_USING_DEFAULT_WARNING indicates that the default locale data was used; neither the requested locale nor any of its fall back locales could be found.</p> </blockquote> <p>When I use the <strong>fr_FR</strong> locale, for example, I get an U_USING_FALLBACK_WARNING, which indicates that a fall back locale was used, in this case the locale <strong>fr</strong>.</p> <h1>Locale</h1> <p>As it seems, your computer does not have support to the French language (or it does, but somehow PHP can't use it and then fallback to the default language), even though the command <code>locale -a</code> displays the French packages. I have some suggestions you can try.</p> <p>First, list all the supported locales:</p> <pre><code>cat /usr/share/i18n/SUPPORTED </code></pre> <p>Now, generate the languages you need:</p> <pre><code>sudo locale-gen fr_FR.UTF-8 sudo locale-gen fr_FR.ISO-8859-1 sudo dpkg-reconfigure locales </code></pre> <p>If it doesn't work, try to install the packages <strong>language-pack-fr</strong> and <strong>language-support-fr</strong> and generate the languages again.</p> <p>This problem is odd. I have an VM with Ubuntu 11.04 and PHP 5.3.8 and it works just fine, in my Debian 6 too, and I haven't installed any package or configured anything.</p>

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