Below is the code sample:
$test = array(
1 => 'one',
2 => 'two',
3 => 'three'
);
$arrayName = 'test';
error_log(print_r($$arrayName, 1));
error_log($$arrayName[1]);
The output:
Array
(
[1] => one
[2] => two
[3] => three
)
PHP Notice: Undefined variable: e in /Applications/MAMP/htdocs/_base/test.php on line 12
I was hoping that the second line would output 'one' and obviously it didn't work. It seems that the brackets has a higher parsing priority so $arrayName is treated as array here.
I tried using curly brackets to wrap the $$arrayName first, somehow it lead to a PHP Parse error. Since eventually I will need to use unset to remove the selected element, therefore using an temporary variable to store the array is not ideal. Wonder if there is any way that I can achieve this within one line. Any insight is appreciated!
