关于html_entity_decode、空格 以及乱码_html/css_WEB-ITnose
普通ASCII码空格为32，但是浏览器会对普通空格进行自动归并，
也就是如果你输入10个0x20的空格在HTML页面里面，可能会被合并成一个空格。
如果想要一致的呈现多个空格，就要用到 ，这个空格的编码为160，为西欧ISO-8859-1编码标准。
为了让经过HTML编码的内容还原为原来的文本字符，可以使用html_entity_decode方法，
但这样问题就来了，通常HTML编码内容为UTF8格式的，html_entity_decode在浏览器UTF8编码环境下会把
转为一个黑色四方形状的乱码。只有切换为ISO-8859-1才能正确显示为空格。
所以在使用html_entity_decode之前，需要先把 替换掉（str_replace），这样就可以避免乱码问题。
示例：
对下面这段字符串直接进行HTML解码后，会出现乱码的问题：
$str = '真爱粉们，当时活动的一些精选片段吧~ </font></div><div><';$content = html_entity_decode($str);print_r($content );
结果：
先将空格 替换掉，然后再应用html_entity_decode解码后，就不会出现问题了。
$str = '真爱粉们，当时活动的一些精选片段吧~ </font></div><div><'; // 替换空隔符 $content = str_replace(" ","[space_code]",$str); $content = html_entity_decode( $content ); // 转换之后，再将空格符替换回来 $content = str_replace("[space_code]"," ",$content); print_r($content );还有一种简单的方法，htmlspecialchars_decode( )不用转换空格就可以转化并且不出现乱码：
$str = '真爱粉们，当时活动的一些精选片段吧~ </font></div><div><'; $content = htmlspecialchars_decode($str);
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