if statement - order which things are checked

[mosi]

Just a quick question. If I have an if statement which goes "if ((a == b) && (c==d) && (e==f))" if a != b does it still check the other two parts to the statement or not?

I know it won't really make much difference if any to load times but I was just curious.

[pedrobcabral]

http://pt2.php.net/manual/en/language.operators.logical.php

Take a look at the first table. Pretty explanatory.

 

[Caesar]

Yes it does. All the statements would need to prove true in that case. Only time it wouldn't, would be if your conditional statemt looked like....

 

<?php

  if(($a == $b) || ($a == $c) || ($a== $d)) {
    //DO THIS HERE
  }

?>

[teng84]

if (a == b && c==d && e==f)

that is proper

if you have the && it should true all the statement if one is false then all is like false

meaning the condition is not satisfy

but

if (a == b || c==d || e==f)

if one of the statement here is write its like everything is right

 

hope that helps