Positioning else condition in php - php

Question

I have found this little piece of php codes that suites my requirements.
<?php
$allDocs = mysql_query("SELECT id, parent FROM modx_site_content ORDER BY id DESC");
while($doc = mysql_fetch_assoc($allDocs)) {
$parent = mysql_query("SELECT id FROM modx_site_content WHERE parent = " . $doc['id'] . " AND id = " . $doc['parent']);
if(mysql_num_rows($parent)) {
while($parentDoc = mysql_fetch_assoc($parent)) {
echo 'Infinte loop found<br /><br />';
echo 'Document #' . $doc['id'] . ' and document #' . $parentDoc['id'] . ' are each others parent.';
}
}
}
?>
I tried putting the else condition like this:
<?php
$allDocs = mysql_query("SELECT id, parent FROM modx_site_content ORDER BY id DESC");
while($doc = mysql_fetch_assoc($allDocs)) {
$parent = mysql_query("SELECT id FROM modx_site_content WHERE parent = " . $doc['id'] . " AND id = " . $doc['parent']);
if(mysql_num_rows($parent)) {
while($parentDoc = mysql_fetch_assoc($parent)) {
echo 'Infinte loop found<br /><br />';
echo 'Document #' . $doc['id'] . ' and document #' . $parentDoc['id'] . ' are each others parent.';
}
}
else {
echo 'No loop found';
}
}
?>
But it goes into the while loop. Where is the appropriate place to put the else condition?

Answer 1

Indenting was the solution:
<?php
$allDocs = mysql_query("SELECT id, parent FROM modx_site_content ORDER BY id DESC");
while($doc = mysql_fetch_assoc($allDocs)) {
$parent = mysql_query("SELECT id FROM modx_site_content WHERE parent = " . $doc['id'] . " AND id = " . $doc['parent']);
if(mysql_num_rows($parent)) {
while($parentDoc = mysql_fetch_assoc($parent)) {
echo 'Infinte loop found<br /><br />';
echo 'Document #' . $doc['id'] . ' and document #' . $parentDoc['id'] . ' are each others parent.';
}
} else {
//Your Code Here
break;
}
}
?>
The else of the if is inside the first loop but not the second.
Edit:Added the Break to Exit Loop.

Answer 2

Please intent your codeexample before submitting your question. Easeier to read...
It seems like the else-statement is placed correct. Look at your while-statements. Maybe the code never reaches the if-else statement because the first while-loop quits before the if-statemnt gets false. Or as long as the first while-loop runs, you'll always get a row with the the statement
$parent = mysql_query("SELECT id FROM modx_site_content WHERE parent = " . $doc['id'] . " AND id = " . $doc['parent']);