php解析html dom并计数特定的行 [英] Php parse html dom and count specific rows

问题描述

我使用简单php DOM解析器来解析html表并对其行进行计数。

I'm using the "Simple php DOM Parser" to parse an html table and count its row.

我解决了计数所有的行（tr）在其中与此代码：

I solved to count all the rows (tr) in it with this code:

$rows = $table->find('.trClass');
$count = count($rows);
echo $count;

我正确地获取了表中所有行的数量。

And I correctly get the number of all the rows in the table.

现在我只想计算包含特定 td （具有特定字符串）的行。
我们可以假设我只想计算这个td的行：

Now I want to count only the rows which contains a specific td (with a specific string).
We could assume that I want to count only the rows with this td:

<td class="tdClass" align="center" nowrap="">TARGET STRING</td>

如何修改第一个代码以匹配此范围？


我试图使用preg_match或preg_match_all，但我没有太多的经验，所以我想念正确的语法。我想。

How can I modify the first code to match this scope?

I tried to use "preg_match" or "preg_match_all" but I don't have much experience in it, so I miss the correct syntax..I think.

任何帮助非常感谢！

推荐答案

如何：

<?php
$targetString = 'TARGET STRING';
$rows = $table->find('.trClass');

$count = 0;
foreach($rows as $row) {
    foreach($row->find('td') as $td) {
        if ($td->innertext === $targetString) {
            $count++;
            break;
        }
    }
}

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