如何为文本加水印图像？

Question

因此，我有代码从一个目录中将所有文件加以压缩，并将它们水印并放入另一个目录中。我想知道如何使用文本标记我的图像，我尝试过使用imagettftext（），但没有运气。

这里是工作的代码

<?php 
//Source folder where all images are placed 
$source="myimages"; 

//Destination folder where all images with watermark will be copied 
$destination="donewatermarks"; 

//Creating an image object of watermark image 
$watermark=imagecreatefrompng("watermark.png"); 

//Margin of watermark from right and bottom of the main image 
$margin_right=10; 
$margin_bottom=10; 

//Height ($sy) and Width ($sx) of watermark image 
$sx=imagesx($watermark); 
$sy=imagesy($watermark); 

//Get list of images in source folder 
$images=array_diff(scandir($source), array('..', '.')); 

foreach($images as $image){ 
//Create image object of main image 
$img=imagecreatefromjpeg($source.'/'.$image); 

//Copying watermark image into the main image 
imagecopy($img, $watermark, imagesx($img) - $sx - $margin_right, 
imagesy($img) - $sy - $margin_bottom, 0, 0, $sx, $sy); 

//Saving the merged image into the destination folder 
imagejpeg($img, $destination.'/'.$image,100); 

//Destroying the main image object 
imagedestroy($img); 
} 

//Destroying watermark image object 
imagedestroy($watermark); 

?> 

提前感谢！

这里是我试过的代码目前返回一个错误

<?php 
//Source folder where all images are placed 
$source="watermarkitems"; 

//Destination folder where all images with watermark will be copied 
$destination="donewatermarks"; 

//Creating an image object of watermark image 
$watermark=imagecreatefrompng("watermark.png"); 

//Margin of watermark from right and bottom of the main image 
$margin_right=10; 
$margin_bottom=10; 

//Height ($sy) and Width ($sx) of watermark image 
$sx=imagesx($watermark); 
$sy=imagesy($watermark); 

$text = 'Testing...'; 

//Get list of images in source folder 
$images=array_diff(scandir($source), array('..', '.')); 

foreach($images as $image){ 
//Create image object of main image 
$img=imagecreatefromjpeg($source.'/'.$image); 

// Add the text 
imagettftext($img, 20, 0, 10, 20, $black, $font, $text); 

//Saving the merged image into the destination folder 
imagejpeg($img, $destination.'/'.$image,100); 

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

//Destroying the main image object 
imagedestroy($img); 
} 

//Destroying watermark image object 
imagedestroy($watermark); 

?> 

Answer 1

此代码运行对我来说，你可以用这个代码的尝试。

<?php 
$watermark = imagecreatefrompng('watermark.png'); 
$imageURL = imagecreatefrompng('bg.png'); 
$watermarkX = imagesx($watermark); 
$watermarkY = imagesy($watermark); 
imagecopy($imageURL, $watermark, imagesx($imageURL)/5, imagesy($imageURL)/5, 0, 0, $watermarkX, $watermarkY); 
header('Content-type: image/png'); 
imagepng($imageURL); 
imagedestroy($imageURL); 
?>