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@ 2020-09-18T19:57:17Z

<?php declare(strict_types=1);

function numeric($value): void {
    if (is_numeric($value)) {
        echo 'numeric';
    } else {
        echo 'not numeric';
    }

    echo ': ', (int) $value;
}

numeric("\n\t\n 42");
echo ', ';
numeric("1337  ");

Output
Performance
VLD
References
Branches

is_numeric: documentation ( source)

preferences:dark modelive previewkey bindings

35.92 ms | 404 KiB | 5 Q