Question

从这个html页面开始：

https://www.sports-reference.com/olympics/summer/1896/ATH/

我正在尝试使用以下脚本获取一些信息：

<?php
include_once ('C:\moduli\simple_html_dom.php');


    function getTextBetweenTags($url, $tagname) {
    $values = array();
    $html = file_get_html($url);
    foreach($html->find($tagname) as $tag) {

        //echo $tag;

        foreach($tag->find('a') as $a) {

            //echo $a;

            $values[] = $a->innertext. '<br>';
            //echo $values[0];

    }
    print_r ($values);
    unset($values);
    }

    //$result=explode("'s",$values[0]);
    //array_pop($result);
    //return $result;

}

$output = getTextBetweenTags('https://www.sports-reference.com/olympics/summer/1896/ATH/', 'tr  class=""');
//echo '<pre>';

?>

我从循环内的print_r数组得到的是以下（仅第一行）：

Array ( ) Array ( [0] => Men's 100 metres
[1] => Tom Burke
[2] => Fritz Hofmann
[3] => Alajos Szokoly
[4] => Frank Lane
) Array ( [0] => Men's 400 metres
[1] => Tom Burke
[2] => Herbert Jamison
[3] => Charles Gmelin
) Array ( [0] => Men's 800 metres
[1] => Teddy Flack
[2] => Nándor Dáni
[3] => Dimitrios Golemis
) Array ( [0] => Men's 1,500 metres
[1] => Teddy Flack
[2] => Arthur C. Blake
[3] => Albin Lermusiaux

我想存储在分开的变量中（例如100米）：

100 metres
Men
Tom Burke
USA --> (this one taken from "alt" attribute inside html)
Gold --> (static parameter for the first athlete)

然后重置所有并获得第二个循环

100 metres
Men
Fritz Hofmann
GER --> (this one taken from "alt" attribute inside html)
Silver --> (static parameter for the second athlete)

对于最后两名运动员来说，他们都获得了铜奖，所以我想得到：

    100 metres
    Men
    Alajos Szokoly
    HUN --> (this one taken from "alt" attribute inside html)
    Bronze --> (static parameter for the third athlete)

和

        100 metres
        Men
        Frank Lane
        USA --> (this one taken from "alt" attribute inside html)
        Bronze --> (static parameter for the fourth athlete)

最后两名运动员是可识别的，因为在html中他们在td align =“left”属性的同一行。

如何获得？谢谢

Answer 1

这应该适合你：

function getTextBetweenTags($url, $tagname) 
{
    $values = array();
    $html = file_get_html($url);
    foreach($html->find($tagname) as $tag)
    {
        //echo $tag;
        $row = array();
        foreach($tag->find('td') as $td)
        {
            $a_tags = $td->find('a');
            if(count($a_tags) ==0)
            {
                $val ="";
            }
            elseif(count($a_tags)==1)
            {               
                $val = $a_tags[0]->innertext. '<br>';
            }
            else
            {
                $val = array();
                foreach($a_tags as $a)
                {
                    $val[] = $a->innertext. '<br>';
                }
            }
            $values[] = $val;
        }
        print_r ($values);
    unset($values);
    }

}

以此格式输出数组：

Array
(
    [0] => Men's 100 metres<br>
    [1] => Tom Burke<br>
    [2] => Fritz Hofmann<br>
    [3] => Array
        (
            [0] => Alajos Szokoly<br>
            [1] => Frank Lane<br>
        )

)
Array
(
    [0] => Men's 400 metres<br>
    [1] => Tom Burke<br>
    [2] => Herbert Jamison<br>
    [3] => Charles Gmelin<br>
)

Answer 2

我建议你查看这篇文章，因为你真的想从表中提取

How can I extract data from an HTML table in PHP?

如何从数组

2 个答案: