[Solved] Regex for HTML manipulation [closed]

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It is bad practice to use regular expressions to parse HTML. Instead, use the tools provided in PHP that are specifically geared toward parsing HTML, namely DomDocument[doc].

// create a new DomDocument object
$doc = new DOMDocument();

// load the HTML into the DomDocument object (this would be your source HTML)
$doc->loadHTML('
    <table>
        <tr>
            <td width="7" height="50" nowrap>
                <img src="https://stackoverflow.com/images/img_1.png" width="7" height="50" alt="" />
            </td>
        </tr>
    </table>
');

//Loop through each <td> tag in the dom 
foreach($doc->getElementsByTagName('td') as $cell) {
    // grab any images in this cell
    $images = $cell->getElementsByTagName('img');
    if ($images->length >= 1) { // if an image is found
        $image = $images->item(0);
        // add the 'background' property to the cell, use the 'src' property
        $cell->setAttribute('background', $image->getAttribute('src'));
        // remove the image
        $cell->removeChild($image);
    }
}
echo $doc->saveHTML();

See it in action: http://codepad.viper-7.com/x9ooyp

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solved Regex for HTML manipulation [closed]