I don't understand the difference between equal and identical

Question

Hey guys,
Can you help me with my problem ?
Thx for any answer ^^

Answer 1

Basically an equal operator is more lenient on the datatypes, you can do a 3 == "3" and it will still output a true. But an identical operator is more strict, 3 === "3" will simply output a false. Meaning that in identical operator not only wants you to have a same value, it wants you to have a same datatype to output a true.

Answer 2

It's pretty simple.

Let's say that you have three variables:

$a = 1
$b = "1"
$c = 1
== (equal) is used to determine if the variables have the same value.
=== (identical) is used to determine if the variables have the same value and same data type.

In this case you would use == (equal) to check if they have the same values.
So, $a == $c
But, $a is an Integer and $b is a string, so they're not identical because they're not the same data type and same value therefore $a !=== $b.

Answer 3

"==" will check value of operator, "===" will check value and type. For example:
_______

1 == "1" --> true
1 === "1" --> false, because you compare int and String :)

Answer 4

You are not right. Try to compile this:

if("1" == 1)
echo "true";
else
echo "false";

Answer 5

As Wen Qin said. :-)

Read for more:
http://us3.php.net/manual/en/language.types.string.php#language.types.string.conversion

Answer 6

hey frnd I haven't gone through the java so.....I m declining..

Answer 7

@Heroes Killer

1 == "1" would also return false because an Integer will never be equal to a string.