Integer Used As Array¶
An integer is not an array, but it is possible to use the array syntax with it. The values are then always null, and since PHP 7.4, a warning is emitted.
PHP code¶
<?php
var_dump(123[0]);
var_dump(1234['dsds']);
?>
Before¶
NULL
After¶
PHP Warning: Trying to access array offset on int
Warning: Trying to access array offset on int
NULL
PHP version change¶
This behavior changed in 7.4
