Edit report at http://bugs.php.net/bug.php?id=26411&edit=1
ID: 26411
Comment by: ijrbiz at gmail dot com
Reported by: php at bellytime dot com
Summary: while {} else {}
Status: Open
Type: Feature/Change Request
Package: Scripting Engine problem
Operating System: *
PHP Version: *
Block user comment: N
Private report: N
New Comment:
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
}
Previous Comments:
------------------------------------------------------------------------
[2010-12-19 13:08:30] trefighter2334 at aol dot com
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.
------------------------------------------------------------------------
[2008-04-09 07:51:11] ois at oisnot dot com
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();
}
------------------------------------------------------------------------
[2003-11-29 08:59:16] [email protected]
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.
------------------------------------------------------------------------
[2003-11-26 17:21:53] [email protected]
Read again. Your code would always print 'No results found' while the
intended change wouldn't.
------------------------------------------------------------------------
[2003-11-25 19:16:51] [email protected]
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.
------------------------------------------------------------------------
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