Variable Names

Hi,

I seem to be having a problem in assigning a value to an array where the
array is called dynamically.

e.g. the physical name for the array is "my_array", so:
my_array[1] = "test";
works fine.

$array_name = "my_array";
$array_name[1] = "test";
does not work.

I have tried $$array_name[1] = "test"; but to no avail.

Here is my code

/**
* Adds any posted values from the application form to the session
*/
function add_form_to_session() {
foreach ($_POST AS $key => $value) {
if (is_array($value)) {
foreach ($value AS $subkey => $subvalue) {
$_SESSION['ses-app-form']->$key[$subkey] = $subvalue;
//echo "value: ".$key."<br>";
}
}

else {
$_SESSION['ses-app-form']->$key = $value;
//echo "value: ".$key." = ".$value."<br>";
}
}
}


Any Ideas?

Cheers,

Shaun

The manual says:

In order to use variable variables with arrays, you have to resolve an
ambiguity problem. That is, if you write $$a[1] then the parser needs to
know if you meant to use $a[1] as a variable, or if you wanted $$a as the
variable and then the [1] index from that variable. The syntax for resolving
this ambiguity is: ${$a[1]} for the first case and ${$a}[1] for the second.

Does this help you?

Thomas

<?php
$foo = "my_array";
$$foo = array(0 => "bar");

var_dump($my_array);
?>
array(1) { [0]=> string(3) "bar" }


Regards Frank

-----Ursprüngliche Nachricht-----
Von: Shaun [mailto:shaunthornburgh@hotmail.com]
Gesendet: Donnerstag, 29. November 2007 13:57
An: php-general@lists.php.net
Betreff: [php] Variable Names


Hi,

I seem to be having a problem in assigning a value to an array where the
array is called dynamically.

e.g. the physical name for the array is "my_array", so:
my_array[1] = "test";
works fine.

$array_name = "my_array";
$array_name[1] = "test";
does not work.

I have tried $$array_name[1] = "test"; but to no avail.

Here is my code

/**
* Adds any posted values from the application form to the session
*/
function add_form_to_session() {
foreach ($_POST AS $key => $value) {
if (is_array($value)) {
foreach ($value AS $subkey => $subvalue) {
$_SESSION['ses-app-form']->$key[$subkey] = $subvalue;
//echo "value: ".$key."<br>";
}
}

else {
$_SESSION['ses-app-form']->$key = $value;
//echo "value: ".$key." = ".$value."<br>";
}
}
}


Any Ideas?

Cheers,

Shaun

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<?php
$foo = "my_array";
$$foo = array(0 => "bar");

var_dump($my_array);
?>
array(1) { [0]=> string(3) "bar" }


Regards Frank

-----Ursprüngliche Nachricht-----
Von: Shaun [mailto:shaunthornburgh@hotmail.com]
Gesendet: Donnerstag, 29. November 2007 13:57
An: php-general@lists.php.net
Betreff: [php] Variable Names


Hi,

I seem to be having a problem in assigning a value to an array where the
array is called dynamically.

e.g. the physical name for the array is "my_array", so:
my_array[1] = "test";
works fine.

$array_name = "my_array";
$array_name[1] = "test";
does not work.

I have tried $$array_name[1] = "test"; but to no avail.

Here is my code

/**
* Adds any posted values from the application form to the session
*/
function add_form_to_session() {
foreach ($_POST AS $key => $value) {
if (is_array($value)) {
foreach ($value AS $subkey => $subvalue) {
$_SESSION['ses-app-form']->$key[$subkey] = $subvalue;
//echo "value: ".$key."<br>";
}
}

else {
$_SESSION['ses-app-form']->$key = $value;
//echo "value: ".$key." = ".$value."<br>";
}
}
}


Any Ideas?

Cheers,

Shaun

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PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php