在Javascript或PHP中获取2d数组键值？

Question

I have a table of in which all the cells have a textbox to edit cell data. Now I want to use ajax to save data to a table for each keyup event. I have each textbox named as a 2d array that contains 2 ids, 1 id for each key, that I want save in a table.

<input type="text" name="txtfield[1][2]" />

now those 1 and 2 keys are ids that I want to save each in a separate column in a table.

Is there an easy way of getting those key values or should I use some string manipulation to get those values?

Any suggestions either in javascript or php would help.

Answer 1

It would probably be easier to name them

<input type="text" name="txtfield-1-2" />

Then, in PHP, you access them with

for (i = 1; i <= m; i++)
    for (j = 1; j <= n; j++)
        whatever($_POST["txtfield-$i-$j"]); /* or $_GET[...] */

In JavaScript, you do something like

for (i = 1; i <= m; i++)
    for (j = 1; j <= n; j++)
        whatever(document.getElementById("txtfield-" + i + "-" + $j).value);

I am assuming that these are in some kind of grid, so m and n are known. If not, Ek0nomik's solution would suit you better, although the regex should be \.*\[([0-9]+)\]\[([0-9]+)\] (\[ and \] should go outside of (...) and quantifier + should be added to allow indexes larger than 9) or, a bit more precise, ^txtfield\[([0-9]+)\]\[([0-9]+)\]$.