Variable name on form submit

jgd12345 · Jul 10, 2004

Hi, I've got an text box:

<input type="text" name="drawGameBoards[0].numbersChosen[0]" class="text">

If I pass this variable across using a php script then what would it be called. My instincts were that it would be $drawGameBoards[0].numbersChosen[0] but that returns a parse error.

I'd be greatful if anyone could help. Thanks

sleipnir214 · Jul 10, 2004

Assuming that the method of the form in which the input appears is "POST", then the value is probably available in

$_POST['drawGameBoards'][0]

The "." you are using as a JavaScript- or VBScript-style object hierarchy separator is only used in PHP as a string contatenation operator. So PHP probably will ignore everything after the ".".

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jgd12345 · Jul 10, 2004

Yeah the method is post.

That hasn't helped too much though because I have two fields which would give the same variable name like that, example below:

<input type="text" name="drawGameBoards[0].numbersChosen[0]" class="text">

<input type="text" name="drawGameBoards[0].numbersChosen[1]" class="text">

It's important that I keep these names for the input boxes because otherwise the form would not work. Would it be possible me to have an event (using javascript) which would set a whole lot of new variables with proper php variables names equal to all those weird ones in the form.

Hope you understand if so how would I make sure they pass back to where the information is collected.

sleipnir214 · Jul 10, 2004

Don't try to create some kind of object in your variable-naming. Think in terms of arrays, not object

This will work:

<input type="text" name="drawGameBoards[0][numbersChosen][0]" class="text">

And the value will be in $_POST['drawGameBoards'][0]['numbersChosen'][0].

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jgd12345 · Jul 10, 2004

Hi, Cheers I replaced all the object names with arrays. When I tried echo $_POST['drawGameBoards'][0]['numbersChosen'][0]; after submitting the variable was blank even though I put text in the text box.

sleipnir214 · Jul 10, 2004

I'm not sure what to tell you.

On my system I have the following HTML page:

Code:

<html><body>
	<form method="post" action="show_post.php">
		<input type="text" name="drawGameBoards[0][numbersChosen][0]" class="text">
		<input type="submit">
	</form>
</body></html>

The script show_post.php (to which the form above submits) consists of:

Code:

<?php
print '<pre>';
print_r ($_POST);
?>

When I point my browser to the HTML page, enter a in the text field, and submit, the script returns the following:

Code:

Array
(
    [drawGameBoards] => Array
        (
            [0] => Array
                (
                    [numbersChosen] => Array
                        (
                            [0] => a
                        )

                )

        )

)

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jgd12345 · Jul 12, 2004

Hi thanks for your help already but it still does not work for me. I've tried creating a test.php file with the following contents:

<?php
if(!$submit) {
?>

<html>
<form method="post" action="test.php">
<input type="text" name="drawGameBoards[0]numbersChosen[0]">
<input type="text" name="drawGameBoards[0]numbersChosen[1]">
<input type="text" name="drawGameBoards[0]numbersChosen[2]">
<input type="text" name="drawGameBoards[1]numbersChosen[0]">
<input type="text" name="drawGameBoards[1]numbersChosen[1]">
<input type="text" name="drawGameBoards[1]numbersChosen[2]">
<input type="submit" name="submit" value="submit">
</form>
</html>

<?php
} else {
print '<pre>';
print_r ($_POST);
}

?>

But when I goto enter some values and click submit I get the following output:

Array
(
[drawGameBoards] => Array
(
[0] => 3
[1] => 6
)

[submit] => submit
)

I donno if this is of any use to you but my current version of PHP is 4.3.6.

I'd be greatful for your help as this is driving me nuts. Thanks

sleipnir214 · Jul 12, 2004

You're still thinking in terms of objects. You need to think in terms of a multidimentional array.

Look at your field name:

drawGameBoards[0]numbersChosen[0]

Look at my form field name. It's all array elements:

drawGameBoards[0][red][[/red]numbersChosen[red]][/red][0]

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Variable name on form submit

jgd12345

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sleipnir214

Programmer

jgd12345

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sleipnir214

Programmer

jgd12345

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sleipnir214

Programmer

jgd12345

Technical User

sleipnir214

Programmer

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