Can you give a better example to support your request? Your example can easily be written as:

while ($row = mysql_fetch_assoc($result)) {
   print 'Here is a result';
   ...
} 

if (!row) {
   print 'No results found';
}

I don't think that this one test is so expensive that it makes it worth the trouble (and cost) to clutter up the language.

Read again. Your code would always print 'No results found' while the intended change wouldn't.

Yes, you're right, my code was wrong. Next try:

$found = false;
while ($row = mysql_fetch_assoc($result)) {
   $found = true;
   print 'Here is a result';
   ...
} 

if (!$found) {
   print 'No results found';
}


The proposed while/else syntax is indeed a bit more elegant.

try {
  foreach ($nullValue as $nothing) {
    echo 'valid input';
  } else {
    //suppress notice
    echo 'null value';
  }
  //or/and
} catch (ExceptionObjectNotIterator $e) {
  //object doesnt implement Iterator
  echo $e->getMessage();
}

I'd love to see something like Python's while/else logic implemented in PHP.

This logical construct would allow developers to define blocks of code in else 
{} that'd run upon a natural exit from the while(){} loop caused by said loop's 
condition becoming FALSE; however, the else {} would be skipped over if the loop 
exits unnaturally -- a la through a break statement or because of an exception.

It is to die for on a semi-daily basis for me (in python)... but I'm not sure 
this is what the developers above (and their examples) have in mind or not.

Either implementation would prove useful to me.

Highly agreed, this request would be very practical for improved coding structure and 
follows logical language syntax nicely.

function remove_items (&$arr, $needle) {
	while ($key = array_search($needle, $arr)) {
		unset( $arr[$key] );
	} else return false; // No items present
	return true; // Item(s) removed
}

I agree. I think a while () else () will make things easier. I was researching and 
found out that it doesnt exist yet. 


while($row = mysqli_fetch_assoc($result)) { }

with al else I would fix it.. I am new in PHP,. I will try to find something to 
fix it. but if the while else is release in a new version that would be nice.

This is a great idea. I am currently needing something like this, but however got 
around it using flags and making the flag true in the while. It would be alot more 
convenient if there was an else!

Please add this feature!!!

Hey, i was also looking for some while {} else {} feature...
but i think it could be difficult to implement such a function in php.
Because the else{} event would start after the while{}-loop ends -> everytime after the last result!
think about it!

Why don't you go a little bit further ?

while ( $row = mysql_fetch_assoc( $result ) ){

} else for ( $i = 0; $i < $cpt; $i++ ) {

} else if ( $dude ) {

} else {

}

no such syntax in other languages.

Revert status change.

laruence@php.net
no such syntax in other languages.
---------------------------------

Python has it and some versions of BASIC have it aswell.

Python has an "else" for loops, but it means something completely different.

"no such syntax in other languages"....what do you mean ? PHP doesn't have the right innovate ? 

I see plenty of cases I would use this syntax. The "else"s would be triggered if there hasn't been any iteration in the loop. It means : less variables to use (so less memory usage), less code lines, etc... 

There are only advantages to this syntax (and it's pretty simple to understand, no KISS violation here). It's not because it isn't done by other languages that we shouldn't implement it.

It's not that simple. Loops are repeatedly evaluated conditions. It isn't clear 
whether adding an else clause would only apply to the first evaluation or also 
subsequent ones.

I understand your opinion. You want to make the "else" keyword usable only when "false" is encountered, like in "if...else". I didn't think about this.

In that case, let's use another keyword, because this syntax is an excellent idea.

Why not this ? 

<?php
while ($row = mysql_fetch_assoc($result)) {
   print 'Here is a result';
   ...
} none {
   print 'No results found';
}
?>

I would like to go further in that way : "iterated". "iterated" would be parsed if there has been at least 1 iteration in the loop.
<?php
...
// Usual Case
$array_raw = SomeClass::getAll( $dbconn );
$cnt_raw = count( $array_raw );

$arr_output = array();

for ( $i = 0; $i < $cnt_raw; $i++ ) {
	$arr_output[] = $array_raw[$i]->id . ' - ' . $array_raw[$i]->label;
}
if ( $cnt_raw > 0 ){
	echo some_function( $arr_output );
} else {
	echo 'Nothing to display';
}
...
?>

<?php
...
// Shorter, faster, lighter
$array_raw = SomeClass::getAll( $dbconn );
$cnt_raw = count( $array_raw );

$arr_output = array();

for ( $i = 0; $i < $cnt_raw; $i++ ) {
	$arr_output[] = $array_raw[$i]->id . ' - ' . $array_raw[$i]->label;
} iterated {
	echo some_function( $arr_output );
} none {
	echo 'Nothing to display';
}
...
?>

I don't really see a problem why not to implement this
<?php

while(!true) {
  // do something
} else[if[...]] {
  // nothing to do
}


//Could internally be translated to:

$looped = false;
while(!true) { 
  $looped = true;
  // do something
}

if(!$looped) {
  // nothing to do
}

?>

We shouldn't use "if" or "else" for this. We should use new keywords for this. It seems simple to implement, but maybe they don't want this because of performance concerns ?

I'd love something like this: if there is at least one iteration, even with break or continue, don't do "else", otherwise, enter the else. 
Another great would be even better, something like "while(..){..}done{...}else{...}"

It could be a new keyword like "whileif".

Anyway, even the first proposed structure would be awesome.

Closing as Wfx as this feature was rejected in https://wiki.php.net/rfc/loop_or.

Hey, it's an awesome feature everyone would like. Let's reject it!

I almost never join conversations or write comments online but I would also love to see this feature as well. It's just nicer, easier to look at and it uses less code which is what I go for. However... if there is a reason behind why you won't do this, I would understand.

while ($result = $get->fetch_assoc()) {
  $in=1;
  echo 'Something';
}
if(!$in){ echo 'Nothing'; }

WHEN I could be doing this

while ($result = $get->fetch_assoc()) {
       echo 'Something'; 
}else{ echo 'Nothing'; }

This syntax would indeed be great. I see that the vote was not passed at the RFC, but I don't see any argumentation why.

Other languages don't have it is not true, and also not a reason to not add it.

What are arguments against having such a useful construct?

This syntax is causing problems for some because it violates the KISS principles. Since "else" is used for conditions, and since you can write conditions and loops without curly brackets, it could cause confusion to a lot of people.

I proposed "iterated" (if at least 1 iteration) and "none" ("else") as replacements, but this request has been rejected shortly after...

Plus, consider the following (bad) code :
<?php
$bool = true;
$rand = rand(1, 5);

if ($bool)
  while ($rand != 4) 
    $rand = rand(1, 5);
else
  echo '!bool';

If "else" for loops is implemented, the behaviour of this code will change. I'm sure there are a lot of code like this. That's another reason people don't like this new use for "else".