pschriner/locallang-xml-to-xliff.php

## locallang-xml-to-xliff.php
<?php
function Language2XML($data, $language, $translations = array()) {
    $xml = new DOMDocument('1.0', 'UTF-8');
    $xliff = $xml->createElement('xliff');
    $xliff->setAttribute('version', '1.0');

    $file = $xml->createElement('file');
    $file->setAttribute('source-language', 'en');
    if (func_num_args() > 2) {
        $file->setAttribute('target-language', $language);
    }
    $file->setAttribute('datatype', 'plaintext');
    $file->setAttribute('original', 'messages');
    $file->setAttribute('data', strftime('%Y-%m-%dT%H-%M-%S'));
    $file->setAttribute('product-name', 'zsb');

    $header = $xml->createElement('header');
    $file->appendChild($header);

    $body = $xml->createElement('body');
    foreach ($data as $index => $label) {
        $unit = $xml->createElement('trans-unit');
        $unit->setAttribute('id', $index);
        $unit->setAttribute('xml:space', 'preserve');

        $source = $xml->createElement('source', $label);
        $unit->appendChild($source);

        if (func_num_args() > 2) {
            $target = $xml->createElement('target', $translations[$index]);
            $unit->appendChild($target);
        }

        $body->appendChild($unit);
    }

    $file->appendChild($body);
    $xliff->appendChild($file);
    $xml->appendChild($xliff);
    $xml->formatOutput = true;

    return $xml->saveXML();
}
$outputs = [];
if (isset($_POST['xml'])) {
    $xml = $_POST['xml'];
    $xml = utf8_encode($xml);

    $doc = new DOMDocument();
    $doc->loadXML($xml);

    $defaults = array();
    $langs    = array();

    $xpath = new DOMXPath($doc);
    $languages = $xpath->query("//T3locallang/data/languageKey");
    foreach ($languages as $language) {
        $lang = $language->attributes['index']->value;

        if ($lang !== 'default') {
            $langs[$lang] = array();
        }

        foreach ($language->childNodes as $word) {
            if ($word->nodeName !== 'label') {
                continue;
            }

            $string      = utf8_decode($word->attributes['index']->value);
            $translation = utf8_decode($word->nodeValue);

            if ($lang === 'default') {
                $defaults[$string] = $translation;
            } else {
                $langs[$lang][$string] = $translation;
            }
        }
    }

    $outputs = array(
        'locallang.xlf' => Language2XML($defaults, 'en'),
    );
    foreach ($langs as $lang => $words) {
        $outputs[$lang . '.locallang.xlf'] = Language2XML($defaults, $lang, $words);
    }
}
?>
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>LocalLang: XML to XLIFF</title>
    <style>
    textarea {
        box-sizing: border-box;
        height: 250px;
        width: 100%;
    }
    </style>
</head>
<body>
    <form action="<?= $_SERVER['PHP_SELF'] ?>" method="post">
        <fieldset>
            <legend>Input locallang.xml</legend>
            <textarea name="xml" style="width: 100%; height: 250px;"><?= htmlspecialchars(@$_POST['xml']) ?></textarea>
        </fieldset>

        <footer>
            <input type="submit">
        </footer>
    </form>
<?php
foreach ($outputs as $file => $xml) {
    echo('<h2>' . $file . '</h2>');
    echo('<textarea onfocus="this.select()">'. htmlspecialchars($xml) .'</textarea>');
}
?>
</body>
</html>
	<?php
	function Language2XML($data, $language, $translations = array()) {
	$xml = new DOMDocument('1.0', 'UTF-8');
	$xliff = $xml->createElement('xliff');
	$xliff->setAttribute('version', '1.0');

	$file = $xml->createElement('file');
	$file->setAttribute('source-language', 'en');
	if (func_num_args() > 2) {
	$file->setAttribute('target-language', $language);
	}
	$file->setAttribute('datatype', 'plaintext');
	$file->setAttribute('original', 'messages');
	$file->setAttribute('data', strftime('%Y-%m-%dT%H-%M-%S'));
	$file->setAttribute('product-name', 'zsb');

	$header = $xml->createElement('header');
	$file->appendChild($header);

	$body = $xml->createElement('body');
	foreach ($data as $index => $label) {
	$unit = $xml->createElement('trans-unit');
	$unit->setAttribute('id', $index);
	$unit->setAttribute('xml:space', 'preserve');

	$source = $xml->createElement('source', $label);
	$unit->appendChild($source);

	if (func_num_args() > 2) {
	$target = $xml->createElement('target', $translations[$index]);
	$unit->appendChild($target);
	}

	$body->appendChild($unit);
	}

	$file->appendChild($body);
	$xliff->appendChild($file);
	$xml->appendChild($xliff);
	$xml->formatOutput = true;

	return $xml->saveXML();
	}
	$outputs = [];
	if (isset($_POST['xml'])) {
	$xml = $_POST['xml'];
	$xml = utf8_encode($xml);

	$doc = new DOMDocument();
	$doc->loadXML($xml);

	$defaults = array();
	$langs = array();

	$xpath = new DOMXPath($doc);
	$languages = $xpath->query("//T3locallang/data/languageKey");
	foreach ($languages as $language) {
	$lang = $language->attributes['index']->value;

	if ($lang !== 'default') {
	$langs[$lang] = array();
	}

	foreach ($language->childNodes as $word) {
	if ($word->nodeName !== 'label') {
	continue;
	}

	$string = utf8_decode($word->attributes['index']->value);
	$translation = utf8_decode($word->nodeValue);

	if ($lang === 'default') {
	$defaults[$string] = $translation;
	} else {
	$langs[$lang][$string] = $translation;
	}
	}
	}

	$outputs = array(
	'locallang.xlf' => Language2XML($defaults, 'en'),
	);
	foreach ($langs as $lang => $words) {
	$outputs[$lang . '.locallang.xlf'] = Language2XML($defaults, $lang, $words);
	}
	}
	?>
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">
	<title>LocalLang: XML to XLIFF</title>
	<style>
	textarea {
	box-sizing: border-box;
	height: 250px;
	width: 100%;
	}
	</style>
	</head>
	<body>
	<form action="<?= $_SERVER['PHP_SELF'] ?>" method="post">
	<fieldset>
	<legend>Input locallang.xml</legend>
	<textarea name="xml" style="width: 100%; height: 250px;"><?= htmlspecialchars(@$_POST['xml']) ?></textarea>
	</fieldset>

	<footer>
	<input type="submit">
	</footer>
	</form>
	<?php
	foreach ($outputs as $file => $xml) {
	echo('<h2>' . $file . '</h2>');
	echo('<textarea onfocus="this.select()">'. htmlspecialchars($xml) .'</textarea>');
	}
	?>
	</body>
	</html>