string checking issue

[vijdev]

I need to ensure a certain field input is:

1.having both alphabets and numerics

2.begins with uppercase alpha

3.must be min. 5 and max 10 characters in all.

 

I am using ^[A-Z]{1}[A-Za-z0-9]{4,9}, but here are the drawbacks:

1.It does not mandate that a number exists in the input, it only ensures it is alphanumeric

2.ctype_alnum along with above regex also does not work.

3.I dont want to mandate that the numbers are only after the alphas(exception of 1st upper case alpha)

 

[dabaR]

What if you split it into several checks?

[vijdev]

dabar?how?

[vijdev]

$input= "King623456789";
$basic_check = preg_match("/^[A-Z]{1}[A-Za-z0-9]{4,9}/", $input, $inputComponents);
$checknum= preg_match("/[0-9]/", $input, $numComponents);   
if ($myDate){
    if($checknum){
        echo "All Ok!";
    }
    else echo "no number";
    
}
else echo "absolutely no match!";

 

anyone any comments?