ctype_digit

Opis

Checks if all of the characters in the provided string, text, are numerical.

Parametry

Zwracane wartości

Returns TRUE if every character in text is a decimal digit, FALSE otherwise.

Przykłady

Przykład 1. A ctype_digit() example <?php $strings = array('1820.20', '10002', 'wsl!12'); foreach ($strings as $testcase) {     if (ctype_digit($testcase)) {         echo "The string $testcase consists of all digits.\n";     } else {         echo "The string $testcase does not consist of all digits.\n";     } } ?> Powyższy przykład wyświetli: The string 1820.20 does not consists of all digits. The string 10002 consists of all digits. The string wsl!12 does not consists of all digits.

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