endforeach in loops?
PhpLoopsForeachIf StatementPhp Problem Overview
I use brackets when using foreach loops. What is endforeach for?
Php Solutions
Solution 1 - Php
It's mainly so you can make start and end statements clearer when creating HTML in loops:
<table>
<? while ($record = mysql_fetch_assoc($rs)): ?>
<? if (!$record['deleted']): ?>
<tr>
<? foreach ($display_fields as $field): ?>
<td><?= $record[$field] ?></td>
<? endforeach; ?>
<td>
<select name="action" onChange="submit">
<? foreach ($actions as $action): ?>
<option value="<?= $action ?>"><?= $action ?>
<? endforeach; ?>
</td>
</tr>
<? else: ?>
<tr><td colspan="<?= array_count($display_fields) ?>"><i>record <?= $record['id'] ?> has been deleted</i></td></tr>
<? endif; ?>
<? endwhile; ?>
</table>
versus
<table>
<? while ($record = mysql_fetch_assoc($rs)) { ?>
<? if (!$record['deleted']) { ?>
<tr>
<? foreach ($display_fields as $field) { ?>
<td><?= $record[$field] ?></td>
<? } ?>
<td>
<select name="action" onChange="submit">
<? foreach ($actions as $action) { ?>
<option value="<?= $action ?>"><?= action ?>
<? } ?>
</td>
</tr>
<? } else { ?>
<tr><td colspan="<?= array_count($display_fields) ?>"><i>record <?= $record['id'] ?> has been deleted</i></td></tr>
<? } ?>
<? } ?>
</table>
Hopefully my example is sufficient to demonstrate that once you have several layers of nested loops, and the indenting is thrown off by all the PHP open/close tags and the contained HTML (and maybe you have to indent the HTML a certain way to get your page the way you want), the alternate syntax (endforeach
) form can make things easier for your brain to parse. With the normal style, the closing }
can be left on their own and make it hard to tell what they're actually closing.
Solution 2 - Php
It's the end statement for the alternative syntax:
foreach ($foo as $bar) :
...
endforeach;
Useful to make code more readable if you're breaking out of PHP:
<?php foreach ($foo as $bar) : ?>
<div ...>
...
</div>
<?php endforeach; ?>
Solution 3 - Php
as an alternative syntax you can write foreach loops like so
foreach($arr as $item):
//do stuff
endforeach;
This type of syntax is typically used when php is being used as a templating language as such
<?php foreach($arr as $item):?>
<!--do stuff -->
<?php endforeach; ?>
Solution 4 - Php
It's just a different syntax. Instead of
foreach ($a as $v) {
# ...
}
You could write this:
foreach ($a as $v):
# ...
endforeach;
They will function exactly the same; it's just a matter of style. (Personally I have never seen anyone use the second form.)
Solution 5 - Php
How about this?
<ul>
<?php while ($items = array_pop($lists)) { ?>
<ul>
<?php foreach ($items as $item) { ?>
<li><?= $item ?></li>
<?php
}//foreach
}//while ?>
We can still use the more widely-used braces and, at the same time, increase readability.
Solution 6 - Php
Using foreach:
... endforeach;
does not only make things readable, it also makes least load for memory as introduced in PHP docs
So for big apps, receiving many users this would be the best solution
Solution 7 - Php
How about that?
<?php
while($items = array_pop($lists)){
echo "<ul>";
foreach($items as $item){
echo "<li>$item</li>";
}
echo "</ul>";
}
?>