$str = 'var ori_head_img_url = "http://wx.qlogo.cn/mmhead/Q3auHgzwzM6KrtMAC0Mia9xONJF2lg8FvaD4vcwkXLYpZSH3iaUvhEEA/132";
    var msg_title = '广州地铁拿地!白云地铁上盖或卖3.5万+!'.html(false);
    var msg_desc = "三条地铁还有一线江景!";';
	
$isMatched = preg_match_all('/([\'"])(?:(?!\1).)*?\1/', $str, $matches);
var_dump($isMatched, $matches);

"http://wx.qlogo.cn/mmhead/Q3auHgzwzM6KrtMAC0Mia9xONJF2lg8FvaD4vcwkXLYpZSH3iaUvhEEA/132"
'广州地铁拿地!白云地铁上盖或卖3.5万+!'
"三条地铁还有一线江景!"