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Bug #6470 Variable variables with arrays
Submitted: 2000-08-31 11:27 UTC Modified: 2000-08-31 11:57 UTC
From: drew at elysium dot ltd dot uk Assigned:
Status: Closed Package: Other
PHP Version: 4.0.2 OS: RH 6.2 i386
Private report: No CVE-ID: None
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From: drew at elysium dot ltd dot uk
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 [2000-08-31 11:27 UTC] drew at elysium dot ltd dot uk 
Is there any reason why this does not work :-

<?
$array = array("key" => "value");
$key = "[key]";

$variable_variable = "array${key}";

$value = $$variable_variable;

print $value;
?>

The only way around this seems to be eval.  Not good.

Rgds Drew Wells

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 [2000-08-31 11:57 UTC] stas@php.net 
$$ syntax can be used for variable names only. $var["key"] is an expression, not variable name. For expressions, you need to use eval (if you refuse to use $$variable_variable[$key]). That is not a bug.
 
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