for loop combine array into single string

[calmchess]

the follwing for loop loops through an array containing strings.....i need to loop through the array and combine the strings into a single string........How should i do this? please use a for loop as the array's length is dynamic

 

for($j=0;$j<count($arr2);$j++){

$arr_ser =$arr2[$j].":";

 

}

[shino]

Like this?

 

$string = implode(':', $arr2); 

echo $string;

[calmchess]

thanks that worked