how to split the value of a variable and put into an array and use in a select query

[reddymade]

I have the following variable $areacode in it if it has 305,212

I want to use for areacode_substr=" and a.areacode like '%305%' or a.areacode like '%212%'"
Can you please tell me how to put the values into an array and then remove the commas and then use the values:

---

if( $areacode!=null ){
$areacode_substr = " and a.areacode like '%".$areacode."%' ";
}else{
$areacode_substr = "";
}

---

Thank you very much for the information.

[samudasu]

Use the explode function to make an array out of a string.
explode

$array = explode(",", $areacode);  

$array[0] equals 305
$array[1] equals 212