how to create a unique code with proper format - php

Question

I want to create unique code iwth respect to particular selected item my unique code format is
FN1A,FN1B---------FN1Z After z loop is start again
FN2A,FN2B-----------FN2Z So on
Here i use this code
<?php
for($row=1; $row<=22; $row++){
echo "<tr>";
for ($column='A'; $column!='AA'; $column++){
echo "<td> $row $column </td>";
}
echo "</tr>";
}
?>
Please help me guys to create unique sample code with same format i mention in this

Answer 1

Try PHP Range
<?php
for($row=1; $row<=22; $row++){
echo "<tr>";
foreach (range('A', 'Z') as $char) { // Get A - Z as array
echo "FN{$row}{$char}"; //Concatenate as per your requirements
}
echo "</tr>";
}
?>

Answer 2

for($row=1; $row<=22; $row++){
echo "<tr>";
for ($column='A'; $column<='Z'; $column++){
echo "<td> FN".$row . $column." </td>";
}
echo "</tr>";
}

Answer 3

I know about the concatenate guys you concatenate with my logic but I have form with particular samples one i select the sample from dropdown one unique code genrate and insert into database

Answer 4

I think what you are missing is the range function in php, visit http://php.net/manual/en/function.range.php for detail information, I will leave you the example I built, regards.
<?php
$array_alb = range('A', 'Z');
$array_num = range('1', '9');
echo '<pre>';
print_r($array_alb);
echo '</pre><pre>';
print_r($array_num);
echo '</pre>';
$prefix = 'FN';
$result = array();
foreach ($array_num as $num)
{
foreach($array_alb as $letter)
{
$result[] = $prefix.$num.$letter;
}
}
echo '<pre>';
print_r($result);
echo '<pre>';
?>
Array
(
[0] => FN1A
[1] => FN1B
[2] => FN1C
[3] => FN1D
[4] => FN1E
[5] => FN1F
[6] => FN1G
[7] => FN1H
[8] => FN1I
[9] => FN1J
[10] => FN1K
[11] => FN1L
[12] => FN1M
[13] => FN1N
[14] => FN1O
[15] => FN1P
[16] => FN1Q
[17] => FN1R
[18] => FN1S
[19] => FN1T
[20] => FN1U
[21] => FN1V
[22] => FN1W
[23] => FN1X
[24] => FN1Y
[25] => FN1Z
[26] => FN2A
[27] => FN2B
[28] => FN2C
[29] => FN2D
[30] => FN2E
[31] => FN2F
[32] => FN2G
[33] => FN2H
[34] => FN2I
[35] => FN2J
[36] => FN2K
[37] => FN2L
[38] => FN2M
[39] => FN2N
[40] => FN2O
[41] => FN2P
[42] => FN2Q
[43] => FN2R
[44] => FN2S
[45] => FN2T
[46] => FN2U
[47] => FN2V
[48] => FN2W
[49] => FN2X
[50] => FN2Y
[51] => FN2Z
[52] => FN3A
[53] => FN3B
[54] => FN3C
[55] => FN3D
[56] => FN3E
[57] => FN3F
[58] => FN3G
[59] => FN3H
[60] => FN3I
[61] => FN3J
[62] => FN3K
[63] => FN3L
[64] => FN3M
[65] => FN3N
[66] => FN3O
[67] => FN3P
[68] => FN3Q
[69] => FN3R
[70] => FN3S
[71] => FN3T
[72] => FN3U
[73] => FN3V
[74] => FN3W
[75] => FN3X
[76] => FN3Y
[77] => FN3Z
[78] => FN4A
[79] => FN4B
[80] => FN4C
[81] => FN4D
[82] => FN4E
[83] => FN4F
[84] => FN4G
[85] => FN4H
[86] => FN4I
[87] => FN4J
[88] => FN4K
[89] => FN4L
[90] => FN4M
[91] => FN4N
[92] => FN4O
[93] => FN4P
[94] => FN4Q
[95] => FN4R
[96] => FN4S
[97] => FN4T
[98] => FN4U
[99] => FN4V
[100] => FN4W
[101] => FN4X
[102] => FN4Y
[103] => FN4Z
[104] => FN5A
[105] => FN5B
[106] => FN5C
[107] => FN5D
[108] => FN5E
[109] => FN5F
[110] => FN5G
[111] => FN5H
[112] => FN5I
[113] => FN5J
[114] => FN5K
[115] => FN5L
[116] => FN5M
[117] => FN5N
[118] => FN5O
[119] => FN5P
[120] => FN5Q
[121] => FN5R
[122] => FN5S
[123] => FN5T
[124] => FN5U
[125] => FN5V
[126] => FN5W
[127] => FN5X
[128] => FN5Y
[129] => FN5Z
[130] => FN6A
[131] => FN6B
[132] => FN6C
[133] => FN6D
[134] => FN6E
[135] => FN6F
[136] => FN6G
[137] => FN6H
[138] => FN6I
[139] => FN6J
[140] => FN6K
[141] => FN6L
[142] => FN6M
[143] => FN6N
[144] => FN6O
[145] => FN6P
[146] => FN6Q
[147] => FN6R
[148] => FN6S
[149] => FN6T
[150] => FN6U
[151] => FN6V
[152] => FN6W
[153] => FN6X
[154] => FN6Y
[155] => FN6Z
[156] => FN7A
[157] => FN7B
[158] => FN7C
[159] => FN7D
[160] => FN7E
[161] => FN7F
[162] => FN7G
[163] => FN7H
[164] => FN7I
[165] => FN7J
[166] => FN7K
[167] => FN7L
[168] => FN7M
[169] => FN7N
[170] => FN7O
[171] => FN7P
[172] => FN7Q
[173] => FN7R
[174] => FN7S
[175] => FN7T
[176] => FN7U
[177] => FN7V
[178] => FN7W
[179] => FN7X
[180] => FN7Y
[181] => FN7Z
[182] => FN8A
[183] => FN8B
[184] => FN8C
[185] => FN8D
[186] => FN8E
[187] => FN8F
[188] => FN8G
[189] => FN8H
[190] => FN8I
[191] => FN8J
[192] => FN8K
[193] => FN8L
[194] => FN8M
[195] => FN8N
[196] => FN8O
[197] => FN8P
[198] => FN8Q
[199] => FN8R
[200] => FN8S
[201] => FN8T
[202] => FN8U
[203] => FN8V
[204] => FN8W
[205] => FN8X
[206] => FN8Y
[207] => FN8Z
[208] => FN9A
[209] => FN9B
[210] => FN9C
[211] => FN9D
[212] => FN9E
[213] => FN9F
[214] => FN9G
[215] => FN9H
[216] => FN9I
[217] => FN9J
[218] => FN9K
[219] => FN9L
[220] => FN9M
[221] => FN9N
[222] => FN9O
[223] => FN9P
[224] => FN9Q
[225] => FN9R
[226] => FN9S
[227] => FN9T
[228] => FN9U
[229] => FN9V
[230] => FN9W
[231] => FN9X
[232] => FN9Y
[233] => FN9Z
)