How Can I Convert PHP Dot Notation Strings into Multidimensional Arrays?

Converting Dot Notation to Multidimensional Arrays in PHP

In PHP, it is possible to emulate a multidimensional array structure using dot notation like "this.that.other". However, this can become cumbersome to manage and edit. To address this, a method is sought to convert dot notation into a multidimensional array.

A suggested solution employs the following function:

function assignArrayByPath(&$arr, $path, $value, $separator='.') {
    $keys = explode($separator, $path);

    foreach ($keys as $key) {
        $arr = &$arr[$key];
    }

    $arr = $value;
}

This function iterates through the keys separated by dots, creating any missing keys along the way, and ultimately assigning the desired value.

For example, the following dot notation:

s1.t1.column.1 = size:33%

Can be converted to a multidimensional array like so:

assignArrayByPath($source, 's1.t1.column.1', 'size:33%');

echo $source['s1']['t1']['column']['1']; // Output: size:33%

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