Print Echo

[astralaaron]

I understand print returns a value, echo doesn't making it slightly faster.Just wondering if anyone has a practical example of when print() could possibly return false?$example = "";if(print($example)) echo 'printed';else echo 'not printed';I can't get print to return false.. trying to understand it for whatever reason, just to learn.EDIT: i just tried this and thought for sure it would break the loop after the 3rd echo but no.

<?php$darse = array('a','b','c');for($i = 0; $i < 1000; $i++){	if(print($darse[$i])) continue;	else break;}echo 'loop ended';

Edited February 21, 2010 by astralaaron

[Synook]

http://www.php.net/manual/en/function.print.php

Return ValuesReturns 1, always.

[astralaaron]

lol - why is this even in the language?

Edited February 21, 2010 by astralaaron

[boen_robot]

lol - why is this even in the language?

Perl compatibility, I think.

[jeffman]

For one thing, you can use shorthand like this:$x = 12;$x == 5 || print ('no')Which admittedly is a Perl-kind-of thing to do.Quiz: why does having a return value make this syntax legal?

[astralaaron]

Quiz: why does having a return value make this syntax legal?

been staring at it like a deer in headlights, got me - but i want to know

[jeffman]

Logical operators evaluate expressions that can be evaluated as Boolean values. The && doesn't instruct print() to execute. The print expression executes on its own when control moves past the &&. If the thing to the right of && cannot be evaluated as true or false, you throw a runtime error.So an expression with a return value works. An expression without a return value does not work.I really wish break and continue statements had return values in the same way.