Convert HTML Table to Column Array PHP

user_8123030 0
Viewed 2813

How to Convert HTML Table to PHP Array Column? There is a HTML table and there is a php code, but I can not come to the desired result.

Below brought my example and the desired result.

I wrote php code, but it does not display the correct structure.

HTML Table:

<html>
<head>
</head>
<body>
<table>
<tbody>
    <tr>
        <td>header</td>
        <td>header</td>
    <td>header</td>
</tr>
<tr>
    <td>content</td>
    <td>content</td>
    <td>content</td>
</tr>
<tr>
<td>test</td>
<td>test</td>
<td>test</td>
</tr>
</tbody>
</table>
</body>
</html>

PHP CODE:

$DOM = new \DOMDocument();
$DOM->loadHTML($valdat["table"]);

$Header = $DOM->getElementsByTagName('tr')->item(0)->getElementsByTagName('td');
$Detail = $DOM->getElementsByTagName('td');

//#Get header name of the table
foreach($Header as $NodeHeader) 
{
    $aDataTableHeaderHTML[] = trim($NodeHeader->textContent);
}
//print_r($aDataTableHeaderHTML); die();

//#Get row data/detail table without header name as key
$i = 0;
$j = 0;

foreach($Detail as $sNodeDetail) 
{
    $aDataTableDetailHTML[$j][] = trim($sNodeDetail->textContent);
    $i = $i + 1;
    $j = $i % count($aDataTableHeaderHTML) == 0 ? $j + 1 : $j;
}
//print_r($aDataTableDetailHTML); die();

//#Get row data/detail table with header name as key and outer array index as row number
for($j = 0; $j < count($aDataTableHeaderHTML); $j++)
{
    for($i = 1; $i < count($aDataTableDetailHTML); $i++)
    {

        $aTempData[][$aDataTableHeaderHTML[$j]][] = $aDataTableDetailHTML[$i][$j];
    }
}

$aDataTableDetailHTML = $aTempData;
echo json_encode($aDataTableDetailHTML);

My result:

[{"header":["content"]},{"header":["test"]},{"header":["content"]},{"header":["test"]},{"header":["content"]},{"header":["test"]}]

We need such a result:

[
   ["header","content","test"],
   ["header","content","test"],
   ["header","content","test"]
]
html-table arrays html php json
3 Answers

I've changed a lot of the code to (hopefully) simplify it. This works in two stages, the first is to extract the <tr> elements and build up an array of all of the <td> elements in each row - storing the results into $rows.

Secondly is to tie up the data vertically by looping across the first row and then using array_column() to extract the corresponding data from all of the rows...

$trList = $DOM->getElementsByTagName("tr");
$rows = [];
foreach ( $trList as $tr )  {
    $row = [];
    foreach ( $tr->getElementsByTagName("td") as $td )  {
        $row[] = trim($td->textContent);
    }
    $rows[] = $row;
}

$aDataTableDetailHTML = [];
foreach ( $rows[0] as $col => $value )  {
    $aDataTableDetailHTML[] = array_column($rows, $col);
}
echo json_encode($aDataTableDetailHTML);

Which with the test data gives...

[["header","content","test"],["header","content","test"],["header","content","test"]]
user_12137080

I have added some extra code, it will chunk the $aDataTableDetailHTML array into the two values, and then add the key, in this case "header"

//There are two elements that are not "header"
$aDataTableDetailHTML = array_chunk($aTempData, 2);

//For every item in the array
foreach($aDataTableDetailHTML as $key=>$tag){
    //Dynamically get the name, in this case, "header"
    $tagName = array_keys( $tag[0] )[0];

    //Start an array containing the tagname ("header")
    $tagOut = array( $tagName );

    //Add the two values onto the array
    $tagOut[] = $tag[0][$tagName][0];
    $tagOut[] = $tag[1][$tagName][0];

    //Drop the keys from the array
    $aDataTableDetailHTML[$key] = array_values( $tagOut );
}

echo json_encode($aDataTableDetailHTML);

This gave me the output:

[ [ "header", "content", "test" ], [ "header", "content", "test" ], [ "header", "content", "test" ] ]

Which seems to match what you were after. Hope that this helps.

I also tested some additional values, and the pattern continued to carry.

user_48568980

I know this answere comes late, but I have developed a package for this purpose. It is called TableDude.

For your case this PHP snippet will work.


// Including TableDude
require __DIR__ . "/../src/autoload.php";

$html = "<html>
<head>
</head>
<body>
<table>
<tbody>
    <tr>
        <td>header</td>
        <td>header</td>
    <td>header</td>
</tr>
<tr>
    <td>content</td>
    <td>content</td>
    <td>content</td>
</tr>
<tr>
<td>test</td>
<td>test</td>
<td>test</td>
</tr>
</tbody>
</table>
</body>
</html>";

// Parses the HTML to array table
$simpleParser = new \TableDude\Parser\SimpleParser($html);
$parsedTables = $simpleParser->parseHTMLTables();

if(count($parsedTables) > 0)
{
    $firstTable = $parsedTables[0];
    $tableOrderedByColumn = \TableDude\Tools\ArrayTool::swapArray($firstTable);
    print_r($tableOrderedByColumn);
}

// This would output
/*
array(
   array("header", "content", "test"),
   array("header", "content", "test"),
   array("header", "content", "test")
)
*/
user_65148010
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