seo的同事要批量提交xml格式的數(shù)據(jù)到搜索引擎，目前項(xiàng)目用laravel框架開發(fā)的，所以就有了這篇文章的誕生了。網(wǎng)上有不少關(guān)于php輸出xml格式的例子，小弟不才也搬過，只是在php文件上面測試是沒問題的，把它搬到laravel框架里面，就有有坑了，主要原因是header頭的問題。

laravel框架怎么返回xml格式數(shù)據(jù)？

如果用header(“Content-type: text/xml”);

這樣的話是沒有效果的，會提示這樣的錯(cuò)誤：

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框架在輸出xml的時(shí)候會自行用text/html方式返回?cái)?shù)據(jù)，解決辦法：

需要return response($xml,200)->header(“Content-type”,“text/xml”);這樣的方式才能改變header頭

laravel返回xml數(shù)據(jù)格式例子：

/**  * 神馬搜索數(shù)據(jù)結(jié)構(gòu)化，written:yangxingyi Data:2018-10-25 11:15  */ 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";        $xml .= "<article>/n";        foreach ($data_array as $data) {            $xml .= $this->create_item($data['title'], $title_size, $data['content'], $data['pubdate']);        }        $xml .= "</article>/n";        #echo $xml;        return response($xml,200)->header("Content-type","text/xml");    } /**  * 神馬搜索數(shù)據(jù)結(jié)構(gòu)化，節(jié)點(diǎn)的具體內(nèi)容 written:yangxingyi  */    private function create_item($title_data, $title_size, $content_data, $pubdate_data)    {        $item = "<item>/n";        $item .= "<title size=/"" . $title_size . "/">" . $title_data . "</title>/n";        $item .= "<content>" . $content_data . "</content>/n";        $item .= " <pubdate>" . $pubdate_data . "</pubdate>/n";        $item .= "</item>/n";        return $item;    }

PHP生成xml格式的數(shù)據(jù)直接加上 header(“Content-type: text/xml”);頭就行了

<?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 .= "<article>/n";foreach ($data_array as $data) {$xml .= create_item($data['title'], $title_size, $data['content'], $data['pubdate']);}$xml .= "</article>/n";echo $xml;//創(chuàng)建XML單項(xiàng)function create_item($title_data, $title_size, $content_data, $pubdate_data){    $item = "<item>/n";    $item .= "<title size=/"" . $title_size . "/">" . $title_data . "</title>/n";    $item .= "<content>" . $content_data . "</content>/n";    $item .= " <pubdate>" . $pubdate_data . "</pubdate>/n";    $item .= "</item>/n";    return $item;}?>

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