Aligning php Generated Image dynamic text in center - php

Question

i want to align the text generated on the image to the center of the image. for the moment, i dont know if it is possible to align it. below is the code.
$im = #imagecreatefromjpeg('poloroid.jpg');
// Create some colors
$white = imagecolorallocate($im, 255, 255, 255);
$grey = imagecolorallocate($im, 128, 128, 128);
$black = imagecolorallocate($im, 0, 0, 0);
//imagefilledrectangle($im, 0, 0, 399, 29, $white);
// The text to draw
//$text = 'John...';
$fbid = $_POST["id"];
$text = $_POST["want"];
$fb_email =$_POST["email"];
$fb_name=$_POST["name"];
$uploads_dir = 'uploaded_files/';
// Replace path by your own font path
$font = 'verdana.ttf';
//image file name
//$name ="$fbid.png";
$name = $uploads_dir.$fbid.".png"; //this saves the image inside uploaded_files folder
// Add some shadow to the text
imagettftext($im, 20, 0, 25, 126, $grey, $font, $text);
// Add the text
imagettftext($im, 20, 0, 25, 125, $black, $font, $text);
// Using imagepng() results in clearer text compared with imagejpeg()
//imagepng($im);
imagepng($im,$name,9);
imagedestroy($im);
thanks for the help guys.

Answer 1

$im = #imagecreatefromjpeg('poloroid.jpg');
// Create some colors
$white = imagecolorallocate($im, 255, 255, 255);
$grey = imagecolorallocate($im, 128, 128, 128);
$black = imagecolorallocate($im, 0, 0, 0);
//imagefilledrectangle($im, 0, 0, 399, 29, $white);
// The text to draw
//$text = 'John...';
$fbid = $_POST["id"];
$text = $_POST["want"];
$fb_email =$_POST["email"];
$fb_name=$_POST["name"];
$uploads_dir = 'uploaded_files/';
// Replace path by your own font path
$font = 'verdana.ttf';
$font_size = 20;
$angle = 45;
//image file name
//$name ="$fbid.png";
$name = $uploads_dir.$fbid.".png"; //this saves the image inside uploaded_files folder
// Get image Width and Height
$image_width = imagesx($im);
$image_height = imagesy($im);
// Get Bounding Box Size
$text_box = imagettfbbox($font_size,$angle,$font,$text);
// Get your Text Width and Height
$text_width = $text_box[2]-$text_box[0];
$text_height = $text_box[7]-$text_box[1];
// Calculate coordinates of the text
$x = ($image_width/2) - ($text_width/2);
$y = ($image_height/2) - ($text_height/2);
// Add some shadow to the text
imagettftext($im, $font_size, 0, $x, $y+1, $grey, $font, $text);
// Add the text
imagettftext($im, $font_size, 0, $x, $y, $black, $font, $text);
// Using imagepng() results in clearer text compared with imagejpeg()
//imagepng($im);
imagepng($im,$name,9);
imagedestroy($im);

Answer 2

You can use stil/gd-text class. Disclaimer: I am the author.
<?php
use GDText\Box;
use GDText\Color;
$im = #imagecreatefromjpeg('poloroid.jpg');
$textbox = new Box($im);
$textbox->setFontSize(20);
$textbox->setFontFace('verdana.ttf');
$textbox->setFontColor(new Color(0, 0, 0)); // black
$textbox->setTextShadow(
new Color(0, 0, 0, 80), // black color, but 60% transparent
0,
-1 // shadow shifted 1px to top
);
$textbox->setBox(
0, // distance from left edge
0, // distance from top edge
imagesx($im), // textbox width, equal to image width
imagesy($im) // textbox height, equal to image height
);
// now we have to align the text horizontally and vertically inside the textbox
// the texbox covers whole image, so text will be centered relatively to it
$textbox->setTextAlign('center', 'center');
// it accepts multiline text
$textbox->draw($text);
$uploads_dir = 'uploaded_files/';
//image file name
//$name ="$fbid.png";
$name = $uploads_dir.$fbid.".png"; //this saves the image inside uploaded_files folder
imagepng($im, $name, 9);
imagedestroy($im);
Demonstration:

Answer 3

I've updated your code a little:
function ImageTTFCenter($image, $text, $font, $size, $angle = 45)
{
$xi = imagesx($image);
$yi = imagesy($image);
$box = imagettfbbox($size, $angle, $font, $text);
$xr = abs(max($box[2], $box[4]));
$yr = abs(max($box[5], $box[7]));
$x = intval(($xi - $xr) / 2);
$y = intval(($yi + $yr) / 2);
return array($x, $y);
}
$im = #imagecreatefromjpeg('poloroid.jpg');
// Create some colors
$white = imagecolorallocate($im, 255, 255, 255);
$grey = imagecolorallocate($im, 128, 128, 128);
$black = imagecolorallocate($im, 0, 0, 0);
//imagefilledrectangle($im, 0, 0, 399, 29, $white);
// The text to draw
//$text = 'John...';
$fbid = $_POST["id"];
$text = $_POST["want"];
$fb_email =$_POST["email"];
$fb_name=$_POST["name"];
$uploads_dir = 'uploaded_files/';
// Replace path by your own font path
$font = 'verdana.ttf';
//image file name
//$name ="$fbid.png";
$name = $uploads_dir.$fbid.".png"; //this saves the image inside uploaded_files folder
list($x, $y) = ImageTTFCenter($im, $text, $font, 20)
// Add some shadow to the4 text
imagettftext($im, 20, 0, $x, $y+1, $grey, $font, $text);
// Add the text
imagettftext($im, 20, 0, $x, $y, $black, $font, $text);
// Using imagepng() results in clearer text compared with imagejpeg()
//imagepng($im);
imagepng($im,$name,9);
imagedestroy($im);
The ImageTTFCenter function will find the center coordinates of you image which you will tell imagettftext

Answer 4

foreach ($user as $key=>$value){
$bb = imagettfbbox($value['font-size'],0,$fontname,$value['name']);
$WW = abs($bb[2]-$bb[0]);
$XX = ($value['XPos']+$WW);
$HH = abs($bb[5]-$bb[3]);
$HH +=1;
$HHH += $HH;
imagettftext($im, $value['font-size'], 0, $value['XPos'], $value['YPos'], $color[$value['color']], $fontname, $value['name']);
$HHH += 1;
$WIDE = abs($bb[2]-$bb[0]);
$endpoint=$value['XPos']+$WIDE;
$bb2 = imagettfbbox($value['font-size'],0,$fontname,$value['name']);
$WW2 = abs($bb2[2]-$bb2[0]);
$x2pos= $endpoint-$WW2;
imagettftext($im, $value['font-size'], 0, $x2pos, $value['YPos'], $color[$value['color']], $fontname, $value['name']);
}