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@ 2014-05-24T18:17:31Z

<?php

$tests = array(
    '0x539',
    '02471',
    '1337e0',
    '0b10100111001',
);

foreach ($tests as $element) {
    var_dump((int)$element);
    if (is_numeric($element)) {
        echo "'{$element}' is numeric", PHP_EOL;
    } else {
        echo "'{$element}' is NOT numeric", PHP_EOL;
    }
}

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
is_numeric: documentation ( source)

preferences:dark modelive preview

37.1 ms | 402 KiB | 5 Q