PHP Array Turns me banging my head -

have variables retrieve withem data database so:

foreach ($row $result) {     if ($row[28] == '') {         $string28 = '';     }else if( $row[28] == 0){         $string28 = '';     } else{         $string28 = '<div class="add_img"><h1>connexion</h1><img src="images/'.$row[28].'.jpeg"></div>';     } }   foreach ($row $result) {     if ($row[30] == '') {         $string30 = '';     }else if($row[30] == 0){         $string30 = '';     } else{         $string30 = '<div class="add_img"><h1>fixation</h1><img src="images/'.$row[30].'.jpeg"></div>';     } }  foreach ($row $result) {     if ($row[31] == '') {         $string31 = '';     }else if($row[31] == 0){         $string31 = '';     } else{         $string31 = '<div class="add_img"><h1>schéma</h1><img src="images/'.$row[31].'.jpeg"></div>';     } } 

and here's show results code:

<h1>application</h1> <div class="clear"></div> <div class="add_div"> <?php echo $string28; echo $string29; echo $string30; echo $string31; echo $string34;  ?> 

but can't code expression php
first want store variables in array if array empty here talking if te variables empty echo espression there's nothing

hope can me guys.
, of in advance.

your question bit confusing, tell if variable empty, use empty()

if(empty($string28)) {    // since it's empty } 

it work on arrays ...

$array = array(); if(empty($array)) {    echo "yep, it's empty!"; }