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<?php
/**
* phpTextToImage class
* This class converts text to image in PHP
*
* @author Legend Blogs
* @link https://www.legendblogs.com
*/
class phpTextToImage {
private $image;
/**
* Create image from text
* @param string text to convert into image
* @param string textColor
* @param string backgroundColor
* @param int font size of text
* @param int width of the image
* @param int height of the image
*/
function createImage($text, $textColor = '#f8f9fa', $backgroundColor = '#012713', $fontSize = 90, $imgWidth = 300, $imgHeight = 300) {
//text font path
$font = '/var/www/html/nhg_portal/classes/text_to_image/Roboto-Bold.ttf';
//create the image
$this->image = imagecreatetruecolor($imgWidth, $imgHeight);
$colorCode = array('#ffffff','#db3236', '#f4c20d', '#3cba54', '#4c53cc', '#56aad8', '#61c4a8');
if ($backgroundColor == '') {
/* select random color */
$backgroundColor = $this->hexToRGB($colorCode[rand(0, count($colorCode) - 1)]);
} else {
/* select background color as provided */
$backgroundColor = $this->hexToRGB($backgroundColor);
}
if ($textColor == '') {
/* select random color */
$textColor = $this->hexToRGB($colorCode[rand(0, count($colorCode) - 1)]);
} else {
/* select background color as provided */
$textColor = $this->hexToRGB($colorCode[rand(0, count($colorCode) - 1)]);
}
$textColor = imagecolorallocate($this->image, $textColor['r'], $textColor['g'], $textColor['b']);
$backgroundColor = imagecolorallocate($this->image, $backgroundColor['r'], $backgroundColor['g'], $backgroundColor['b']);
imagefilledrectangle($this->image, 0, 0, $imgWidth - 1, $imgHeight - 1, $backgroundColor);
//break lines
$splitText = explode("\\n", $text);
$lines = count($splitText);
$angle = 0;
foreach ($splitText as $txt) {
$textBox = imagettfbbox($fontSize, $angle, $font, $txt);
$textWidth = abs(max($textBox[2], $textBox[4]));
$textHeight = abs(max($textBox[5], $textBox[7]));
$x = (imagesx($this->image) - $textWidth) / 2;
$y = (imagesy($this->image) + $textHeight) / 2;
$lines = $lines - 1;
//add the text
imagettftext($this->image, $fontSize, $angle, $x, $y, $textColor, $font, $txt);
}
return true;
}
/* function to convert hex value to rgb array */
protected function hexToRGB($colour) {
if ($colour[0] == '#') {
$colour = substr($colour, 1);
}
if (strlen($colour) == 6) {
list( $r, $g, $b ) = array($colour[0] . $colour[1], $colour[2] . $colour[3], $colour[4] . $colour[5]);
} elseif (strlen($colour) == 3) {
list( $r, $g, $b ) = array($colour[0] . $colour[0], $colour[1] . $colour[1], $colour[2] . $colour[2]);
} else {
return false;
}
$r = hexdec($r);
$g = hexdec($g);
$b = hexdec($b);
return array('r' => $r, 'g' => $g, 'b' => $b);
}
/**
* Display image
*/
function showImage() {
header('Content-Type: image/png');
return @imagepng($this->image);
}
/**
* Save image as png format
* @param string file name to save
* @param string location to save image file
*/
function saveAsPng($fileName = 'text-image', $location = '') {
$fileName = $fileName . ".png";
$fileName = !empty($location) ? $location . $fileName : $fileName;
return @imagepng($this->image, $fileName);
}
/**
* Save image as jpg format
* @param string file name to save
* @param string location to save image file
*/
function saveAsJpg($fileName = 'text-image', $location = '') {
$fileName = $fileName . ".jpg";
$fileName = !empty($location) ? $location . $fileName : $fileName;
return @imagejpeg($this->image, $fileName);
}
}
?>