How to Efficiently Convert Dot Syntax to Multi-Dimensional Arrays in PHP?

Transforming Dot Syntax to Multi-Dimensional Arrays in PHP

Question:

How can you efficiently convert dot syntax, such as "this.that.other," into a multi-dimensional array in PHP?

Answer:

To achieve this conversion, consider implementing the following function:

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

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

    $arr = $value;
}

Explanation:

This function accomplishes the desired conversion by iterating through the keys specified in the $path parameter, using the $separator as the delimiter. For each key, it accesses and updates the corresponding element in the $arr array. Finally, it assigns the $value to the lowest-level element in the array.

Example Usage:

To demonstrate the function's functionality, execute the following code:

$arr = [];
assignArrayByPath($arr, 's1.t1.column.1', 'size:33%');

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

By utilizing this function, you can effectively convert dot syntax into multi-dimensional arrays, simplifying the handling and retrieval of complex data structures.

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