What's the difference?

[matt_4013]

Hi, can someone please explain to me the difference between these 2 conditions:

if(!($boolean == true || feof($fp)) {
//blah
}

// AND THIS ONE

if($boolean != true || !feof($fp)) {

//blah
}

[mknudsen]

From the php manual

$a == $b Equal TRUE if $a is equal to $b.
$a != $b Not equal TRUE if $a is not equal to $b.

Which means that:

if(!($boolean == true || feof($fp)) {

// this code should be execute if $boolean evalutes to true
// and $fp is at end-of-file.

}

if($boolean != true || !feof($fp)) {

// and this code should be execute if $boolean dose not evalute to true and $fp isen't at end-of-file
}

[Weedpacket]

What mknudsen said, but for "and" read "or".

The first says that neither is true, the second says that one or the other is false.

[matt_4013]

gotcha, that explains why one worked and 1 didn't 🙂 Thanks.