背景：

seo的同事要批量提交xml格式的数据到搜索引擎，目前项目用laravel框架开发的，所以就有了这篇文章的诞生了。网上有不少关于php输出xml格式的例子，小弟不才也搬过，只是在php文件上面测试是没问题的，把它搬到laravel框架里面，就有有坑了，主要原因是header头的问题。

laravel框架怎么返回xml格式数据？

如果用header(“Content-type: text/xml”);

这样的话是没有效果的，会提示这样的错误：This page contains the following errors:

error on line 14 at column 6: XML declaration allowed only at the start of the document

Below is a rendering of the page up to the first error.

laravel框架在输出xml的时候会自行用text/html方式返回数据，解决办法：

需要return response($xml,200)->header(“Content-type”,“text/xml”);这样的方式才能改变header头

laravel返回xml数据格式例子：#zs#* * 神马搜索数据结构化，written:yangxingyi Data:2018-10-25 11:15 #fzs# public function index(Request $request){ $data_array = array( array( 'title' => 'title1', 'content' => 'content1', 'pubdate' => '2009-10-11', ), array( 'title' => 'title2', 'content' => 'content2', 'pubdate' => '2009-11-11', ) ); $title_size = 1; $xml = "<?xml version="1.0" encoding="utf-8"?>n"; $xml .= "n"; foreach ($data_array as $data) { $xml .= $this->create_item($data['title'], $title_size, $data['content'], $data['pubdate']); } $xml .= "n"; #echo $xml; return response($xml,200)->header("Content-type","text/xml"); } #zs#* * 神马搜索数据结构化，节点的具体内容 written:yangxingyi #fzs# private function create_item($title_data, $title_size, $content_data, $pubdate_data) { $item = "n"; $item .= "" . $title_data . "n"; $item .= "" . $content_data . "n"; $item .= " " . $pubdate_data . "n"; $item .= "n"; return $item; }

PHP生成xml格式的数据直接加上 header(“Content-type: text/xml”);头就行了<?php header("Content-type: text/xml"); $data_array = array( array( 'title' => 'title1', 'content' => 'content1', 'pubdate' => '2009-10-11', ), array( 'title' => 'title2', 'content' => 'content2', 'pubdate' => '2009-11-11', ) ); $title_size = 1; $xml = "<?xml version="1.0" encoding="utf-8"?>n"; $xml .= "n"; foreach ($data_array as $data) { $xml .= create_item($data['title'], $title_size, $data['content'], $data['pubdate']); } $xml .= "n"; echo $xml; //创建XML单项 function create_item($title_data, $title_size, $content_data, $pubdate_data) { $item = "n"; $item .= "" . $title_data . "n"; $item .= "" . $content_data . "n"; $item .= " " . $pubdate_data . "n"; $item .= "n"; return $item; } ?>

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