Pick out a single letter in a string?

[Anon]

Does anyone know the code to search a string passed through a form field for a single letter? Example: If D124566 contains the letter D, then...

[craigh]

see this:

http://www.php.net/manual/en/function.strstr.php

[Anon]

check out the function: strstr in the php manual :

string strstr (string haystack, string needle)

strstr("ABC", "Z") ------> returns false cause Z isn't found in "ABC"

[daarius]

sure,

eregi('([A-Z]{1})([0-9]{1,})', $string, $arr);

/**
$arr[0] contains the whole of the string
$arr[1] contains the letter
$arr[2] contains the numbers
/

// now e.g.
if ($arr[1] == 'D') {
echo 'Letter D was entered';
}

hope you get the idea.
good luck,
Daarius...