How to Extract and Print Specific Column Values (filepath and filename) from a Multidimensional Array in PHP?

Looping Multidimensional Arrays for Specific Column Values

In multidimensional arrays, accessing and printing specific column values can be a common task. Here's how you can achieve this in PHP.

Problem:

How do I print only the filepath and filename values from each row of the following multidimensional array?

$array = [
    [
        'fid' => 14,
        'filename' => 'trucks_10785.jpg',
        'filepath' => 'sites/default/files/trucks_10785.jpg'
    ],
    // ... other rows
];

Answer:

There are multiple ways to loop through multidimensional arrays in PHP. Here are three common approaches:

1. Foreach Loop without Key:

foreach ($array as $item) {
    echo $item['filename'] . '<br>';
    echo $item['filepath'] . '<br>';
}

2. Foreach Loop with Key:

foreach ($array as $i => $item) {
    echo $array[$i]['filename'] . '<br>';
    echo $array[$i]['filepath'] . '<br>';
}

3. For Loop:

for ($i = 0; $i < count($array); $i++) {
    echo $array[$i]['filename'] . '<br>';
    echo $array[$i]['filepath'] . '<br>';
}

In each approach, we access the filepath and filename values using the array key 'filename' and 'filepath', respectively. The output for this array will be:

trucks_10785.jpg
sites/default/files/trucks_10785.jpg

Additionally, you can use var_dump to inspect the contents of arrays or objects. It provides a structural representation of the data, which can be helpful for debugging or understanding complex arrays.

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