What are the potential pitfalls or challenges when trying to display tabular data from grouped arrays in PHP?

When displaying tabular data from grouped arrays in PHP, one potential challenge is properly iterating through the nested arrays to extract and display the data in a structured format. To solve this, you can use nested loops to iterate through the outer and inner arrays to access and display the data accordingly. 

<?php
$groupedData = [
    'Group1' => [
        ['Name' => 'John', 'Age' => 25],
        ['Name' => 'Jane', 'Age' => 30]
    ],
    'Group2' => [
        ['Name' => 'Alice', 'Age' => 22],
        ['Name' => 'Bob', 'Age' => 28]
    ]
];

echo '<table border="1">';
echo '<tr><th>Group</th><th>Name</th><th>Age</th></tr>';

foreach ($groupedData as $group => $data) {
    foreach ($data as $item) {
        echo '<tr>';
        echo '<td>' . $group . '</td>';
        echo '<td>' . $item['Name'] . '</td>';
        echo '<td>' . $item['Age'] . '</td>';
        echo '</tr>';
    }
}

echo '</table>';
?>

Keywords

nested arrays multidimensional arrays foreach loop array_merge array_column

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