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php获取网页头部信息相关

php设置头部

<?php

    header("HTTP/1.0 404 Not Found");

    //header("HTTP/1.0 204 No Response");

?>

php通过内置函数获取头部信息

<?php

//$header = get_headers('http://xingdong365.com');

$header = get_headers('http://xingdong365.com',1);//会解析相应的信息并设定数组的键名

echo "<pre>";

print_r($header);

echo "</pre>";

?>

php通过curl获取头部信息

<?php

var_dump(get_header('http://xingdong365.com'));

function get_header($url){

$ch  = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_HEADER, true);

curl_setopt($ch, CURLOPT_NOBODY,true);

curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);

curl_setopt($ch, CURLOPT_FOLLOWLOCATION,true);

curl_setopt($ch, CURLOPT_AUTOREFERER,true);

$header = curl_exec($ch);

return $header;

}

?>