After choosing your image write PHP code to generate graphical letters with colored background as follows. It is assumed that you’ve designed a complete web form with any required controls already, and that form gets the user multi-line string (in this case three lines are provided; you can expand this code to support more lines).
<?php
Session_start();
//initializing variables
$message1 = POST_[‘msg_1stline’];
$message2 = POST_[‘msg_2ndline’];
$message3 = POST_[‘msg_3rdline’];
$backgnd = POST_[‘image’];
// Save the path where convert is installed in a variable
$convert = "/usr/bin/convert"; $mogrify = "/usr/bin/mogrify"; // a function for writing each line of text as a block of letters
function write_text(int $x, int $y, string $msg)
{
//create a new image with the same size as the background
//for writing the first line of the letters on
$CMD = "$convert size 540x400 xc:transparent line1".strip_tags(SID).".gif";
exec($CMD);
for($i=0;$i<strlen($msg);$i++)...