css - php set top property different after every 3 div dynamically -


i want set css top property different after every 3 div's

for eg:

<div style="top:100px;"> </div> <div style="top:100px;"> </div> <div style="top:100px;"> </div> **now after next 3 div's shall have** <div style="top:150px;"> </div> <div style="top:150px;"> </div> <div style="top:150px;"> </div> **now after next 3 div's shall have** <div style="top:200px;"> </div> <div style="top:200px;"> </div> <div style="top:200px;"> </div> **and on**

i want dynamically using php. using loop can check if 

$ij=0; if($ij%3==0) {     echo "";     }     else {     }

but not sure how desired result.

any appreciated.

try this:

$top = 50; $n = 30; // no. of divs for($i = 0; $i < $n; $i++) {     if($i % 3==0) $top+=50;     echo "<div style=\"top:".$top."px;\">\n</div>"; }

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