Php kontrolní řetězec pro non alfanumerické znaky

Příklady kódu

21
0

PHP generátor náhodných řetězců

function generateRandomString($length = 25) {
    $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
    $charactersLength = strlen($characters);
    $randomString = '';
    for ($i = 0; $i < $length; $i++) {
        $randomString .= $characters[rand(0, $charactersLength - 1)];
    }
    return $randomString;
}
//usage 
$myRandomString = generateRandomString(5);
0
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textové pole by mělo v php přijímat pouze alfanumerické, nikoli speciální znaky

if(ctype_alnum($string)){
    echo "Yes, It's an alphanumeric string/text";
}
else{
    echo "No, It's not an alphanumeric string/text";
}

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