- str_pad: documentation ( source)
<?php
function getPatientCodeDisplay($id='') {
$retstr = "";
if(intval($id)>0) {
$max_id_length = 5;
$id_length = strlen($id);
if($id_length <= $max_id_length) {
$prefix_code = "AHD"."1";
$final_len = $max_id_length+strlen($prefix_code)-$id_length;
$retstr = str_pad($prefix_code, $final_len, "0", STR_PAD_RIGHT);
$retstr .= $id;
}
}
return $retstr;
}
echo getPatientCodeDisplay("5").">>>>>>";
echo getPatientCodeDisplay("10").">>>>>>";
echo getPatientCodeDisplay("111").">>>>>>";
echo getPatientCodeDisplay("1111").">>>>>>";
echo getPatientCodeDisplay("11111").">>>>>>";