PHP :如何从HTML表格中检测行号和列号？

<?php
// 获取表单提交的数据
$tableData = $_POST['tableData'];

// 解析HTML表格数据为二维数组
$pattern = '/<tr>(.*?)<\/tr>/s';
preg_match_all($pattern, $tableData, $matches);

$tableArray = array();
foreach ($matches[1] as $row) {
    $pattern = '/<td>(.*?)<\/td>/s';
    preg_match_all($pattern, $row, $rowData);
    $tableArray[] = $rowData[1];
}

// 遍历二维数组，获取行号和列号
foreach ($tableArray as $rowIndex => $row) {
    foreach ($row as $colIndex => $cell) {
        echo "行号：$rowIndex，列号：$colIndex，单元格内容：$cell<br>";
    }
}
?>