Is it a bad idea to declare an array as array(-1) ?

[jan verschueren]

I got the question from someone at the office. He was converting some code to php code.

He saw "$var = array(-1);" somewhere.
On the internets people say it's better to use (0) then (-1), but no-one says why exactly.

Can harm come from the array(-1) ?

[zorgi]

$var = array(-1); is not the same as $var = array(0);. They are both arrays but they are arrays with different elements.

I do not understand your question.

[Markus]

I don't understand why initializing an array with a single element that has the value -1 could be harmful? You're creating an issue where there isn't one.

[jan verschueren]

ok, thanks. just wanted to be sure

[Dormilich]

it might be different, if you consider languages like JavaScript, where passing a single value to the array constructor will set the array length (or any other object specific setting).

but that’s not the case for PHP.