根据count生成带有php的数字字符串

Question

I'm building a website where I use ascensor.js ( ascensor.js

In order for this to work we have to provide a string like this "1|1 & 1|2 & 1|3 & 1|4 & 2|1 & 2|2 & 2|3 & 2|4 & 3|1 & 3|2 & 3|3 & 3|4"

This will allow the script to build a kind of navigation.

I adapted the script to into wordpress so that layout and ascensor is automatically build, even in category archive pages.

The only thing that I'm stuck with is generate this string based on the number of post to display.

For example if I have 10 posts to display, I would like to have 4 rows, with 3 post by rows (in the fourth rows, there would be of course only one post). I would like to always have something more or less squared, 4 by 5 or 7 by 8 or 6 by 6. So if i have 12 posts for example, the string I would need would be something like the one above.

how would you generate this with PHP ? because for the moment I do it like this ;-)

 $countpost=count($postslist);
 if ( $countpost === 10) {$AscensorMap="1|1 & 1|2 & 1|3 & 1|4 & 2|1 & 2|2 & 2|3 & 2|4 & 3|1 & 3|2";}
 if ( $countpost === 11) {$AscensorMap="1|1 & 1|2 & 1|3 & 1|4 & 2|1 & 2|2 & 2|3 & 2|4 & 3|1 & 3|2 & 3|3";}
 if ( $countpost === 12) {$AscensorMap="1|1 & 1|2 & 1|3 & 1|4 & 2|1 & 2|2 & 2|3 & 2|4 & 3|1 & 3|2 & 3|3 & 3|4";}
 if ( $countpost === 13) {$AscensorMap="1|1 & 1|2 & 1|3 & 1|4 & 2|1 & 2|2 & 2|3 & 2|4 & 3|1 & 3|2 & 3|3 & 3|4 & 4|1";}
 if ( $countpost === 14) {$AscensorMap="1|1 & 1|2 & 1|3 & 1|4 & 2|1 & 2|2 & 2|3 & 2|4 & 3|1 & 3|2 & 3|3 & 3|4 & 4|1 & 4|2";}
 if ( $countpost === 15) {$AscensorMap="1|1 & 1|2 & 1|3 & 1|4 & 2|1 & 2|2 & 2|3 & 2|4 & 3|1 & 3|2 & 3|3 & 3|4 & 4|1 & 4|2 & 4|3";}
 if ( $countpost === 16) {$AscensorMap="1|1 & 1|2 & 1|3 & 1|4 & 2|1 & 2|2 & 2|3 & 2|4 & 3|1 & 3|2 & 3|3 & 3|4 & 4|1 & 4|2 & 4|3 & 4|4";}

As in some pages, I will have around 50 posts to list, I would like to generate this with php.

Any help welcome !

Thank you.

Answer 1

I would suggest calculating the lowest square number greater than your actual number of pages:
$columns = pow(ceil(sqrt($countpost)),2);

Then you can determine the number of rows there will be: $rows = ceil($countpost/$columns);

Now you can use a for loop to generate your string:

$arr = []; // array() before PHP 5.4
for( $y=0; $y<$rows; $y++) {
    for( $x=0; $y*$columns+$x < $countpost && $x < $columns; $x++) {
        $arr[] = ($y+1)."|".($x+1);
    }
}
$AscensorMap = implode(" & ",$arr);