var1::val1||var2::val2||var3::val3|| ... varN::valN

var1=>val1
var2=>val2
var3=>val3

$string="var1::val1||var2::val2||var3::val3";
$res_string=explode("||",$fetch['content']);

foreach($res_string as $r){
$exploded_r=explode("::",$r);
$title=$exploded_r[0];
$value=$exploded_r[1];
echo $title."=".$value;
}

$string="var1::val1||var2::val2||var3::val3";
$res_string=explode("||",$string);

foreach($res_string as $r){
$exploded_r=explode("::",$r);
$title=$exploded_r[0];
$value=$exploded_r[1];
echo $title."=".$value;
}