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php masīva vērtība caur stringu


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Situācija

<?

 $item = array('a'=>array('b'=>array('c'=>'none')));
 $item = '$e[a][b][c]';
 $$item = 'test';
 echo $e[a][b][c]; // 'none';

 

Kods nav produkcijas kods, uzrkasitju to, jo būs vieglāk saprast nekā aizskaidrot.

 

Kā lai panāku bez eval šo? vajag lai atgriež $$item kā 'test'

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Ja es tevi pareizi saprotu, tad tu vēlies izmantot eval funkciju.

 

<?php

$array = array(
    'aa' => array(
        'bb' => 20
    )
);

$string = '$array[\'aa\'][\'bb\']';
eval( $string . ' = 30;' );

echo $array['aa']['bb'];
 
?>

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