PHP - Check if two arrays are equal

Question

I\'d like to check if two arrays are equal. I mean: same size, same index, same values. How can I do that?

Using !== as suggested by a user, I expect th

Answer 1

if (array_diff($a,$b) == array_diff($b,$a)) {
  // Equals
}

if (array_diff($a,$b) != array_diff($b,$a)) {
  // Not Equals
}

From my pov it's better to use array_diff than array_intersect because with checks of this nature the differences returned commonly are less than the similarities, this way the bool conversion is less memory hungry.

Edit Note that this solution is for plain arrays and complements the == and === one posted above that is only valid for dictionaries.