#!/usr/local/bin/php
<?php

$testValue = str_repeat('A', 100000);

function testXML($enc, $val) {
    $xml = new DomDocument('1.0', $enc);
    $xml->appendChild($xml->createElement('foo', $val));
    $xml = $xml->saveXML();
    
    $xml2 = new DomDocument('1.0', $enc);
    $xml2->loadXML($xml);
    return strlen($xml2->firstChild->nodeValue);
}

function d($enc, $size) {
    echo sprintf("%25s -> %s\n", $enc, $size);
}

d('Original size', strlen($testValue));

d('BIG-5', testXML('BIG-5', $testValue));
d('SHIFT-JIS', testXML('SHIFT-JIS', $testValue));
d('SHIFT_JIS', testXML('SHIFT_JIS', $testValue));
d('Shift_JIS', testXML('Shift_JIS', $testValue));
d('ISO-2022-KR', testXML('ISO-2022-KR', $testValue));
d('UTF-8', testXML('UTF-8', $testValue));
d('ASCII', testXML('ASCII', $testValue));
d('ISO-8859-1', testXML('ISO-8859-1', $testValue));