如何获取找到的值,而不是替换?
echo $response=$htmlParserA->find("/tbody/tr/td",5)->plaintext."<br>";
$str=preg_replace("/[0-9][0-9][0-9]/","",$response);
echo $str;
响应:
在HTTP / 1.1 301永久移动之前
HTTP / 1.1永久移动后
如何获得301?
解答:
$str=preg_match("/[0-9][0-9][0-9]/",$response,$asd);
echo $asd[0];
答案 0 :(得分:2)
preg_match会做你想做的事:
$input = "HTTP/1.1 301 Moved Permanently";
$matches = array();
$found = preg_match("/\d{3}/", $input, $matches);
if($found)
{
echo "Code = " . $matches[0];
}
如果需要,您可以使模式更严格:
$found = preg_match("/HTTP\/1\.1\s(\d{3})/", $input, $matches);
if($found)
{
echo "Code = " . $matches[1];
}