哪个版本的PHPUnit是这样的?我很确定最近的版本都支持DomDocument比较。
简短版本:使用$doc->preserveWhiteSpace
设置删除空格,然后使用$doc->C14N()
去掉注释并获取可以比较的字符串。
OK,这里有一个脚本,你可以玩,请注意EOD;
线不能有任何尾随或前导空格。
$x1 = <<<EOD
<responses>
<response id="12">
<foo>bar</foo>
<lorem>ipsum</lorem>
<sit>dolor</sit>
<!--This is a comment -->
</response></responses>
EOD;
$x2 = <<<EOD
<responses>
<response id="12">
<lorem>ipsum</lorem><sit>dolor</sit>
<foo>bar</foo>
<!--This is another comment -->
</response>
</responses>
EOD;
//下一块是同一个文件的一部分,我只是做这个格式断,使StackOverflow的语法高亮系统不呛。
$USE_C14N = true; // Try false, just to see the difference.
$d1 = new DOMDocument(1.0);
$d2 = new DOMDocument(1.0);
$d1->preserveWhiteSpace = false;
$d2->preserveWhiteSpace = false;
$d1->formatOutput = false; // Only useful for "pretty" output with saveXML()
$d2->formatOutput = false; // Only useful for "pretty" output with saveXML()
$d1->loadXML($x1); // Must be done AFTER preserveWhiteSpace and formatOutput are set
$d2->loadXML($x2); // Must be done AFTER preserveWhiteSpace and formatOutput are set
if($USE_C14N){
$s1 = $d1->C14N(true, false);
$s2 = $d2->C14N(true, false);
} else {
$s1 = $d1->saveXML();
$s2 = $d2->saveXML();
}
echo $s1 . "\n";
echo $s2 . "\n";
输出与$USE_C14N=true;
<responses><response id="12"><foo>bar</foo><lorem>ipsum</lorem><sit>dolor</sit></response></responses>
<responses><response id="12"><lorem>ipsum</lorem><sit>dolor</sit><foo>bar</foo></response></responses>
输出与$USE_C14N=false;
<?xml version="1.0"?>
<responses><response id="12"><foo>bar</foo><lorem>ipsum</lorem><sit>dolor</sit><!--This is a comment --></response></responses>
<?xml version="1.0"?>
<responses><response id="12"><lorem>ipsum</lorem><sit>dolor</sit><foo>bar</foo><!--This is another comment --></response></responses>
注意$doc->C14N()
可能比较慢,但是我认为它很可能是剥离出来的意见是可取的。请注意,所有这些还假定XML中的空白不重要,并且可能存在一些使用情况,其中该假设是不正确的...
如何删除所有的空格,然后比较那里sha1哈希? – 2012-04-25 17:26:19