Tanel Tammik wrote:
which one is correct or "better"?
$array = '';
$array['3'] = '';
$i = 7;
$array[$i] = '';
$array["$i"] = '';
Sometimes it is good to illustrate the correct answer:
$array = array
'1' => '1',
'2' => '2',
'three' => 'three',
'4.0' => '4.0',
5.0 => 5.0,
var_dump( array_keys( $array ) );
The answer is surprising (well, not really :) and certainly advocates
against making literal strings of integers or manually converting a
string integer to a real integer or using floating point keys.
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