如何使用PHP在图像文本内容上添加背景色？

使用下面的PHP代码，我可以向图像添加文本，但现在我想向图像文本添加背景色。你能告诉我怎么做吗

注意：文本背景需要位于图像下方

现在是什么：

 //Set the Content Type
  header('Content-type: image/jpg');

  // Create Image From Existing File
  $jpg_image = imagecreatefromjpeg('test-02.jpg');

  // Allocate A Color For The Text
  $color = imagecolorallocate($jpg_image, 0, 0, 0);      

  // Set Path to Font File
  $font_path = 'arial.ttf';

  // Set Text to Be Printed On Image
  $text = "My Content Goes to here";

  // Print Text On Image
  //$image = imagecreatefromjpg($jpg_image);
  $orig_width = imagesx($jpg_image);
  $orig_height = imagesy($jpg_image);

  imagettftext($jpg_image,  20, 0, 10, $orig_height-10, $color, $font_path, $text);

  // Send Image to Browser
  imagejpeg($jpg_image);

  // Clear Memory
  imagedestroy($jpg_image);

我想要什么：

 //Set the Content Type
  header('Content-type: image/jpg');

  // Create Image From Existing File
  $jpg_image = imagecreatefromjpeg('test-02.jpg');

  // Allocate A Color For The Text
  $color = imagecolorallocate($jpg_image, 0, 0, 0);      

  // Set Path to Font File
  $font_path = 'arial.ttf';

  // Set Text to Be Printed On Image
  $text = "My Content Goes to here";

  // Print Text On Image
  //$image = imagecreatefromjpg($jpg_image);
  $orig_width = imagesx($jpg_image);
  $orig_height = imagesy($jpg_image);

  imagettftext($jpg_image,  20, 0, 10, $orig_height-10, $color, $font_path, $text);

  // Send Image to Browser
  imagejpeg($jpg_image);

  // Clear Memory
  imagedestroy($jpg_image);

PHP代码：

 //Set the Content Type
  header('Content-type: image/jpg');

  // Create Image From Existing File
  $jpg_image = imagecreatefromjpeg('test-02.jpg');

  // Allocate A Color For The Text
  $color = imagecolorallocate($jpg_image, 0, 0, 0);      

  // Set Path to Font File
  $font_path = 'arial.ttf';

  // Set Text to Be Printed On Image
  $text = "My Content Goes to here";

  // Print Text On Image
  //$image = imagecreatefromjpg($jpg_image);
  $orig_width = imagesx($jpg_image);
  $orig_height = imagesy($jpg_image);

  imagettftext($jpg_image,  20, 0, 10, $orig_height-10, $color, $font_path, $text);

  // Send Image to Browser
  imagejpeg($jpg_image);

  // Clear Memory
  imagedestroy($jpg_image);

---

如果您不将其视为背景色，而是在编写文本之前绘制一个矩形，那么问题就变得很容易：

$bcolor=imagecolorallocate($jpg_image, 0x00, 0xC0, 0xFF);
imagerectangle($jpg_image,  0, $orig_height*0.8, 0, $orig_height, $bcolor);

在

imagettftext

之前

编辑

它当然是

imagefilledrectangle

，而不是

imagerectangle

。这是完整的脚本

<?php

  // Create Image From Existing File
  $jpg_image = imagecreatefromjpeg('test-02.jpg');
  $orig_width = imagesx($jpg_image);
  $orig_height = imagesy($jpg_image);

  // Allocate A Color For The background
  $bcolor=imagecolorallocate($jpg_image, 0x00, 0xC0, 0xFF);

  //Create background
  imagefilledrectangle($jpg_image,  0, $orig_height*0.8, $orig_width, $orig_height, $bcolor);

  // Set Path to Font File
  $font_path = realpath(dirname(__FILE__)).'/arial.ttf';

  // Set Text to Be Printed On Image
  $text = "New Content Goes to here";

  // Allocate A Color For The Text
  $color = imagecolorallocate($jpg_image, 0, 0, 0);      

  // Print Text On Image
  imagettftext($jpg_image,  20, 0, 10, $orig_height-10, $color, $font_path, $text);

  //Set the Content Type
  header('Content-type: image/jpg');

  // Send Image to Browser
  imagejpeg($jpg_image);

  // Clear Memory
  imagedestroy($jpg_image);

?>

这不是背景颜色。这只是一个带有bg颜色的矩形区域。找到一个函数来编写一个矩形区域并使用它。@u_mulder感谢您的更正。我在

imagettftest

之前添加了这两行，但输出与我的第一个图像相同。日志文件中有什么内容吗？