I say that php breaks math entirely, and is therefore bad.
“” == null returns true
null == [] returns true
“” == [] returns false.
In more recent versions it gets worse, because it has
0 == “any text” return true,
“any text” == true return true,
and 1 == true return true
So indirectly 1 = 0, and now math is more directly broken.
If you’re trying to directly compare different variable types in any language without strong typing, you’re going to have edge-case results which you might not expect.
My “coding like a moron” message still stands. PHP isn’t a strongly typed language and it doesn’t tell you off for trying stupid stuff like comparing a string with an int. Nor do other languages like JavaScript.
I just tested these out out of curiosity.
0==“text” returns false in PHP 8.2 as I’d expect.
The others make sense in the way that php juggles between types. An empty variable can type-juggle to null, but an array can’t be directly compared with a string.
(Although you wouldn’t really want to compare an array with a string, PHP just treats an array as greater than other variables. So weirdly, ([] > “”) == true.)
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I say that php breaks math entirely, and is therefore bad. “” == null returns true null == [] returns true “” == [] returns false.
In more recent versions it gets worse, because it has 0 == “any text” return true, “any text” == true return true, and 1 == true return true So indirectly 1 = 0, and now math is more directly broken.
If you’re trying to directly compare different variable types in any language without strong typing, you’re going to have edge-case results which you might not expect.
My “coding like a moron” message still stands. PHP isn’t a strongly typed language and it doesn’t tell you off for trying stupid stuff like comparing a string with an int. Nor do other languages like JavaScript.
Also using duck typing fails against php is pretty funny when it’s being compared against JAVASCRIPT of all things.
Just… don’t use ==? I haven’t used it in a few years.
I just tested these out out of curiosity.
0==“text” returns false in PHP 8.2 as I’d expect.
The others make sense in the way that php juggles between types. An empty variable can type-juggle to null, but an array can’t be directly compared with a string.
(Although you wouldn’t really want to compare an array with a string, PHP just treats an array as greater than other variables. So weirdly, ([] > “”) == true.)