- substr: documentation ( source)
- var_dump: documentation ( source)
- strpos: documentation ( source)
- is_numeric: documentation ( source)
<?php
$accountNumber = "NRAITCHEFF";
$analyticsClasses = "N1234567F";
var_dump(
strpos(
$analyticsClasses,
substr($accountNumber, 0, 1)
),
is_numeric(strpos(
$analyticsClasses,
substr($accountNumber, 0, 1)
))
);