Two pages compiled by the same editor eclipsephp Studio v1.2.2, Print_r output Why is the font size format inconsistent? Use ajax.php Normal, with Osg_aja

Two pages written by the same editor eclipsephp Studio v1.2.2, Print_r output Why is the font size format inconsistent? Use ajax.php Normal, with Osg_aja
Two pages written by the same editor eclipsephp Studio v1.2.2, Print_r output Why is the font size format inconsistent? Results result in three level provinces and cities linkage with ajax.php normal, with osg_ajax.php not normal
The code in ajax.php is as follows:
Header ("CONTENT-TYPE:TEXT/HTML;CHARSET=GBK");
$sql = "SELECT * from ' ecs_region ' WHERE ' parent_id ' = ' 1 ' ORDER by ' region_id ' ASC";
$list = $db->getall ($sql);
foreach ($list as $key = = $val) {
$list [$key] [' region_name '] = UrlEncode (iconv (' GBK ', ' utf-8 ', $val [' Region_name ']));
}
Print_r (Json_encode ($list));

The output results are as follows:
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osg_ajax.php
The code is as follows:
$sql = "SELECT * from ' osg_region ' WHERE ' parent_id ' = ' 1 ' ORDER by ' region_id ' ASC";

$cursor = Exequery ($connection, $sql);

while ($rows =mysql_fetch_assoc ($cursor)) {
$arr []= $rows;
}

foreach ($arr as $key = $val)
{
$arr [$key] [' region_name '] = UrlEncode (iconv (' GBK ', ' utf-8 ', $val [' Region_name '])); //

}

Print_r (Json_encode ($arr));

——————————————————————————————————————————————————
The output results are as follows:


------Solution--------------------
Coding problems? BOM Header?

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