PHP treats all arrays as associative, so there aren't any built in functions. Can anyone recommend a fairly efficient way to check if an array contains only numeric keys?
Basically, I want to be able to differentiate between this:
$sequentialArray = [ 'apple', 'orange', 'tomato', 'carrot' ];
$assocArray = [ 'fruit1' => 'apple', 'fruit2' => 'orange', 'veg1' => 'tomato', 'veg2' => 'carrot' ];