differences between !== and !=

[chmpdog]

whats the difference between !== and !=

 

 

[Alex]

!= means not equal. !== means not identical. See the manual on comparison operators.

 

Here's an example demonstrating the difference:

 

$var1 = false;
$var2 = 0;

if($var1 != $var2){
    // Won't get here because 0 == false (evaluates to)
}

if($var1 !== $var2){
    // Will get here because $var1 isn't identical to $var2
}

[Maq]

To be more specific it checks data type along with value.