PHP foreach with Nested Arrays
For this scenario, where you aim to access the values of a nested array, the foreach loop is an effective tool. To understand its usage, consider this example:
<code class="php">$tmpArray = [ [ 'one', [1, 2, 3] ], [ 'two', [4, 5, 6] ], [ 'three', [7, 8, 9] ] ];</code>
To iterate through the nested array's values, use the following nested foreach loops:
<code class="php">foreach ($tmpArray as $innerArray) { if (is_array($innerArray)) { foreach ($innerArray as $value) { echo $value; } } else { echo $innerArray; } }</code>
This approach allows you to handle both array and non-array elements within the nested array.
If you don't know the depth of your nested array, recursion is an alternative method. This code will recursively display array members with indentation:
<code class="php">function displayArrayRecursively($arr, $indent='') { if ($arr) { foreach ($arr as $value) { if (is_array($value)) { displayArrayRecursively($value, $indent . '--'); } else { echo "$indent $value \n"; } } } }</code>
For your specific case, where you want to display values from the third level only, you can modify the code as follows:
<code class="php">foreach ($tmpArray as $inner) { if (is_array($inner)) { foreach ($inner[1] as $value) { echo "$value \n"; } } }</code>
This approach will display values from the nested array at the third level, i.e., [1, 2, 3], [4, 5, 6], and [7, 8, 9].
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