What's the difference between !== and != in PHP?

Question

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php == vs === operator

What's the difference between !== and != in PHP?

Answer 1

"1" != 1     // False
"1" !== 1    // True

It's a type thing. !== takes into account the types of its operands, while != does not (the implicit conversion makes the first conditional false).

Answer 2

== is only true if the values are equal. === is only true if the values and types are equal.

Answer 3

!== is strict not equal and which does not do type conversion

!= is not equal which does type conversion before checking

Answer 4

=== AND !== checks if the values compared have the same type (eg: int, string, etc.) and have the same values

While...

== AND != only compares the values

Answer 5

the triple equal also make sure the two variable are from the same type

1 == `1` // is ok
1 === `1` // is not same.

Answer 6

Both are comparion operators

• $a !== $b Return TRUE if $a is not equal to $b, or they are not of the same type.
• $a != $b Return TRUE if $a is not equal to $b.