check in array if array contains a value in php

Question

I have a input phone number 489998723(filled by user). And form database I get following prefixes with rate in array

How I will perform the exact match. Example User entered 489998723 than it should match by 4899987.

Thanks in advance.

Possible duplicate of check multiple values exists php array — Troyer
– Troyer, Commented Aug 17, 2017 at 8:52
use array_search ( mixed $needle , array $haystack [, bool $strict = false ] ) — caryarit ferrer
– caryarit ferrer, Commented Aug 17, 2017 at 8:52
Hi, because according to these prefixes rate will be change for 489998 calling rate will be.023 and 4899987 calling rate will be .58 — Deepak_iise
– Deepak_iise, Commented Aug 17, 2017 at 9:16
So... you've definitely declared an array with these numbers as keys and rates as values, right? I didn't see it in the question details. — mickmackusa
– mickmackusa ♦, Commented Aug 17, 2017 at 9:30

A.Mikhailov · Accepted Answer · 2017-08-17 09:20:09Z

0

Suggest to use str_pos:

$phone = 489998723;

$arr = [
    4899981,
    4899,
    4899988,
    489998,
    4899987,
    48999,
];


rsort($arr);

$result = false;
foreach ($arr as $value) {
    // First match will be string of max length because of sorting
    if (strpos(strval($phone), strval($value)) === 0) {
        $result = $value;
        break;
    }
}

if ($result) {
    print_r ('result: ' . $result . PHP_EOL);
} else {
    print_r ('not found' . PHP_EOL);
}

Sandbox code

answered Aug 17, 2017 at 9:20

A.Mikhailov

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1 Comment

Deepak_iise Over a year ago

Thanks A.Mikhailov It works perfectly. Thank You very much

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