PHP loop condition

Question

Although following code is for WordPress, but my question is more about general PHP loop.

I want to get posts of last 7 days. I want to get only last 7 days which have posts. If some day does not have any post, it should skip to next day.

I am using following loop to get posts from last 7 days, but the problem is that if a day does not have post, it will loop through last 7 days only, no matter if there's any post or not.

So, I have tried to extend $i value only if there is post, but if I place it inside the if condition, it will run infinite times. Thanks for any help about this.

$day = date('j');
while( $i <= 7){
    query_posts('day='$day);    
    if (have_posts()){  
        //list posts.
    }   
    $i++;
    $day--;
}

You need to identify the case where you have checked all entries. In other words when your query fails or you go past the first(last) post. — RyanS
– RyanS, Commented Sep 27, 2013 at 19:36
@Moob this is more complicated than I thought. I want to get last 7 days which have the posts, but now I realized that day (int) is not good idea as it wont work in negative days. I'm just unable to figure out this. — user2738640
– user2738640, Commented Sep 27, 2013 at 19:55

Moob · Accepted Answer · 2013-09-27 20:00:49Z

1

You could set a maximum for the loop and query by date rather than day:

$date = date('Y-m-d');
$maxAttempts=100;
$postCount=0;
while( $i <= $maxAttempts && $postCount <= 7 ){
    query_posts('date='$date);    
    if (have_posts()){  
        //list posts.
        $postCount++;
    }   
    $i++;
    $date = date('Y-m-d', strtotime($date .' -1 day'));
}

edited Sep 27, 2013 at 20:00

answered Sep 27, 2013 at 19:55

Moob

16.5k1 gold badge40 silver badges54 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

crewsblackhole · Accepted Answer · 2013-09-27 19:36:14Z

0

Try this...

$day = date('j');
$post_days_count = 0;
while( $post_days_count < 7){
    query_posts('day='$day);    
    if (have_posts()){
        $post_days_count++;
        //list posts.
    }   
    $day--;
}

answered Sep 27, 2013 at 19:36

crewsblackhole

133 bronze badges

1 Comment

user2738640 Over a year ago

Thanks, but I have already tried this, this won't work because the day of the month will go into negative, and if i place $day inside the if condition, it will run infinite.

alex · Accepted Answer · 2013-09-27 19:36:16Z

0

You could change your loop to only increment $i if a post was found, which would mean the loop would run until it found 7 posts. Be sure to handle the case where it can never find 7 posts.

answered Sep 27, 2013 at 19:36

alex

492k205 gold badges890 silver badges992 bronze badges

1 Comment

user2738640 Over a year ago

Thanks for the answer, and yes, thats what I'm trying to do. If I place the $i inside the if condition, then the $day would go in negative and the loop wont return correct results.

Collectives™ on Stack Overflow

PHP loop condition

3 Answers 3

Comments

1 Comment

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

1 Comment

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related