如何使用PHP获取带数字的字母时删除值

Question

i need one help.i need to remove those ids which has also some letters and inserted rest into a array using PHP. i am explaining my code below.

http://oditek.in/spesh/mobileapi/categoryproduct.php?item=1&acn=5&subcat_id=a15,15,16

here in subcat_id i have one id a15i need to remove this type of ids wheile comes and rest should insert into a array.Please help me.

Answer 1

If I understand you correctly, you want to take the string a15,15,16, convert to an array, and remove the non-numeric values?

If so, it's pretty simple:

$subcatArray = explode(',', $_GET['subcat_id']);
$subcatArrayNumeric = array_filter($subcat, 'is_numeric');

Now $subcatArrayNumeric will be an array with '15' and '16' in it, only.

Working example: https://3v4l.org/hWSOj