Is the == operator transitive in PHP?

Question

In JavaScript, the == operator isn\'t necessarily transitive:

js> \'0\' == 0
true
js> 0 == \'\'
true
js> \'0\' == \'\'
false
         


        

Answer 1

No, the == operator is not transitive.

The exact same scenario gives the same result in PHP.

echo var_dump('0'==0);
echo var_dump(0=='');
echo var_dump('0'=='');

yields:

boolean true
boolean true
boolean false