[RESOLVED] Find exact number in string of numbers

[luv2climb]

Hello,

Does anyone know how I can determine if an exact number exists in a string of similar comma separated numbers?

For example, if I want to determine whether or not the single number or value 1 exists in a string like 2, 11, 3, 22, 1, 89, 111, 34..., can it be done?

So far I've tried some options like strpos and preg_match but seem to be having trouble determining only the single csv of 1. I get a match from the 11 or 111, but I don't want to know if they exist. I only want to know if the single csv of 1 is in the string or not.

And, what about finding only the 11 in that same string as well?

Thank you in advance.

[laserlight]

Use [man]explode/man, e.g.,

$numbers = '2, 11, 3, 22, 1, 89, 111, 34';
$numbers = explode(', ', $numbers);
if (in_array(1, $numbers)) {
    // Exists
} else {
    // Does not exist.
}

In this case I used ', ' as the separator, but if you have to just use ',' and the number of spaces in between numbers is unknown, then after the explode() use [man]trim/man on each element.

[NogDog]

You could also use a regexp:

if(preg_match('/\b'.(int)$number.'\b/', $csvString))
{
   // it's in there
}

[luv2climb]

in_array worked like a charm. I should have posted the question 3 hours ago rather than beat my head on a wall. Thank you for your time, and thanks also to NogDog. Did not try the preg_match yet but I will keep it in mind for future reference. Have a good night everyone.