how to create new vars based on vars?

KashKurcura

hello:

I am trying to create new vars based on information that is stored in an array. I plan on adding value to these vars later on but need to figure out how to dynamically create new vars fists.

can someone please help me?


$Array1 = array (
	'TO'=>array('Type'=>'T', 'Prop'=>'O'),
	'TU'=>array('Type'=>'T', 'Prop'=>'U'),
	'MA'=>array('Type'=>'M', 'Prop'=>'A'),
	'MH'=>array('Type'=>'M', 'Prop'=>'H'),
	'SA'=>array('Type'=>'S', 'Prop'=>'A'),
	'SH'=>array('Type'=>'S', 'Prop'=>'H')
	);

reset($Array1);

foreach ($Array1 as $Sub=>$Data) {

echo "NEW VAR NAME SHOULD BE '{$Data['Type']}{$Data['Prop']}'<br>";

}

so at the end i should have something like this that i can use later on in my script.

$TO = "";
$TU = "";
$MA = "";
$MH = "";
$SA = "";
$SH = "";

bretticus

Can't say I understand what you are trying to accomplish, however, extract may be of some use. It basically creates array variables from array keys/values.

KashKurcura

well i am trying to explain it the best i can.

based on the information in the array, how can i dynamically create new variables? so that i can populate them later.

$MA is made out of $Data['Type'] and $Data['Prop'] so i can use the $MA later on in my script. The array information wont always be the same, that is why i need to create the $Vars

coreyp_1

${$Data['Type']}{$Data['Prop']}='';

or why not just put this in the foreach() loop:

$$sub='';

KashKurcura

hey thanks,

i can get ${$Data['Type']} to work but not ${$Data['Type']}{$Data['Prop']}

any ideas?

laserlight

Using your original example, but with some modification:

<?php
$array = array(
	array('Type'=>'T', 'Prop'=>'O'),
	array('Type'=>'T', 'Prop'=>'U'),
	array('Type'=>'M', 'Prop'=>'A'),
	array('Type'=>'M', 'Prop'=>'H'),
	array('Type'=>'S', 'Prop'=>'A'),
	array('Type'=>'S', 'Prop'=>'H')
);

for ($i = 0; $i < count($array); ++$i) {
	${$array[$i]['Type'] . $array[$i]['Prop']} = $i;
}

echo $TO . $TU . $MA . $MH . $SA . $SH;
?>

This is just the use of variable variables.

My question now would be: what are you really trying to do? There is probably an easier way to do what needs to be done, or perhaps you could use arrays instead.