Create text on image in center using php imagettfbbox

Using imagedestroy, imagejpeg, imagettftext, imagettfbbox, imagefill, hexdec, imagesx, imagesy, strtoupper, font, imagecreatetruecolor, Create text image in image center.


imagettfbbox() Function return array index values means
0 - lower left corner, X position
1 - lower left corner, Y position
2 - lower right corner, X position
3 - lower right corner, Y position
4 - upper right corner, X position
5 - upper right corner, Y position
6 - upper left corner, X position
7 - upper left corner, Y position

createTextImage.php

<?php
$text=strtoupper('P');

$imgWidth = 53;
$imgHeight = 53;
$font = './calibri.ttf';
$fontSize = 12;
$angle = 8;
$imageColor=hexdec("#48A201");
$textColor=hexdec("#FF0000");

$txtImg = imagecreatetruecolor($imgWidth, $imgHeight); 
imagefill($txtImg,0,0,$imageColor);

$xi = imagesx($txtImg);
$yi = imagesy($txtImg);

$textLayout = imagettfbbox($fontSize, $angle, $font, $text);
$xr = abs(max($textLayout[2], $textLayout[4]))+5;
$yr = abs(max($textLayout[5], $textLayout[7]));

$newX = intval(($xi - $xr) / 2);
$newY = intval(($yi + $yr) / 2);

imagettftext($txtImg, $fontSize, 0, $newX, $newY, $textColor, $font, $text);
imagejpeg($txtImg,'img/xx.jpg',90);
imagedestroy($txtImg);

?>