修正有属性值为空的判断
function xml_get_attr($source, $tag) {
$attrArr = array();
preg_match_all("/(?:<${tag})([^>]*)>/im" , $source , $mat);
if(is_array($mat[1]) && count($mat[1])) {
$key = 0;
foreach($mat[1] as $k=>$tempV) {
$attr = array();
if(!empty($tempV)) {
preg_match_all('/([a-zA_Z0-9]+?)\s*?(?:=)\s*?(?:[\'"]?)(.*?)(?:[\'"])/im' , $tempV, $attr);
for($i = 0, $j = count($attr[1]); $i < $j; ++$i) {
$attrArr[$key][$attr[1][$i]] = $attr[2][$i];
}
$key ++;
}
}
}
return $attrArr;
}