note 87564 added to language.variables.variable
| From: | nick at customdesigns dot ca | Date: | Wed, 10 Dec 2008 18:14:40 +0000 |
| Subject: | note 87564 added to language.variables.variable | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-148002@lists.php.net to get a copy of this message | ||
On the topic of variable variables with arrays, I have a simple function that solves the issue. It
works for both indexed and associative arrays, and allows use with superglobals.
function VariableArray($arr, $string)
{
preg_match_all('/\[([^\]]*)\]/', $string, $arr_matches, PREG_PATTERN_ORDER);
$return = $arr;
foreach($arr_matches[1] as $dimension)
{
$return = $return[$dimension];
}
return $return;
}
$test = array('one' => 'two', 'four' => array(8));
$foo = 'test';
$bar = $$foo;
$baz = "[one]";
$var = VariableArray($bar, $baz); //$var now contains 'two'
$baz = "[four][0]";
$var = VariableArray($bar, $baz); //$var now contains int(8)
You can simply pass in a superglobal as the first argument. Note for associative arrays don't
put quotes inside the square braces unless you adjust the regexp to accept it. I wanted to keep it
simple.
----
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Probable Submitter: 68.144.188.69
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Manual Page -- http://www.php.net/manual/en/language.variables.variable.php
Edit -- https://master.php.net/note/edit/87564
Del: integrated -- https://master.php.net/note/delete/87564/integrated
Del: useless -- https://master.php.net/note/delete/87564/useless
Del: bad code -- https://master.php.net/note/delete/87564/bad+code
Del: spam -- https://master.php.net/note/delete/87564/spam
Del: non-english -- https://master.php.net/note/delete/87564/non-english
Del: in docs -- https://master.php.net/note/delete/87564/in+docs
Del: other reasons-- https://master.php.net/note/delete/87564
Reject -- https://master.php.net/note/reject/87564
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