Find numeric value in csv

Question

I need to check if a particular numeric id is in a given string or comma separated values.

$myVal = 20;

String could contain just a single valu

Answer 1

You could use explode to split the string into an array. Something like:

$parts = explode(',', $str);

Then you could use in_array on that.

If you're reading a file, take a look at fgetcsv or str_getcsv.

Answer 2

Use in_array and explode:

$str = '10, 20, 30, 40';
if(in_array(20, explode(', ', $str))) echo 'In Array';
else echo 'Not In Array';

Note that I am using the numeric 20 because it will equal the ' 20' value. If I used '20', it will not match ' 20'.