issues with eval

[gizzmo]

Hello everyone

I have variable and an array that looks like this

$spike=array("james","gil","whatevr")

now james, gil and so on will be variables that will hold data later on

I'd like to turn let say, james into $james in order to get the value of james later on when $james will hold a value.

I tried this $newvar="$".$spike[0] that does not work instead it returned $james as a string not its value. Please help or point me to right direction. Thanks.

[leonleun]

that is because you are using the period which is the concatenation operator, so php thinks you want to concatenate two strings

try

$newvar=${$spike[0]}

[gizzmo]

it's not working, Thanks.

gizzmo.

[leonleun]

this is working for me, unless i don't understand what you are trying to do

<?

$spike=array("james","gil","whatevr");

$james="test";

$newvar=${$spike[0]};

//this will print newvar = 'test'
print("newvar = '$newvar'<br>\n");


?>

[gizzmo]

First of all thank you for you help and patience

but here is what I'm trying to do

$to_show=array("aspk0","cfp0","anic0");
$u_pick=array();
$user_select="";

function Parse_data(){
global $to_show,$u_pick;

for($j=0;$j< count($to_show);$j++) {
$newvar=${$to_show[$j]}; //this will be data passed by form
echo($newvar);//test
if($newvar != "void"){
array_push($u_pick,$newvar);}
}

}

in this case when echo $newvar it returns nothing

[leonleun]

what version of php are you using?

[gizzmo]

Hi

php 4.0

Thanks, gizzmo

[leonleun]

is it actually 4.0.x or something like 4.2.x

[leonleun]

if you are using php 4.2.x or higher you will probably need to use the $GET or $POST vars to get data from your form.

ex:
replace this with
$newvar=${$to_show[$j]};
something like this
$newvar=$POST[$to_show[$j]];
or
$newvar=$GET[$to_show[$j]];

or possibly even this. if you don't care that it comes from the post or get vars
$newvar=$_REQUEST[$to_show[$j]];

[gizzmo]

Hi

I'm using PHP vers:4.1

Thanks again.

[Gary_King]

I haven't read the entire thread yet, but upgrade to the latest version of PHP to get the best results.