PHP imagettftext（）打破了圖像，如果我使用imagecreatefrompng，imagecreatefromjpeg和imagecreatefromgif

Question

圖像加載到瀏覽器很好，但是當我嘗試寫入一些文本，它的圖像中斷（像這樣：http://www.tradenepal.com.np/test.php）。當我註釋掉imagettftext（）時，圖像不會再次加載。這發生在我的本地主機上，我使用WampServer版本2.5。我已經對inetrnet發表過如此多的評論，但我似乎無法知道問題所在。任何幫助將不勝感激。謝謝。我的代碼：

<?php 

//Set content type 
header('Content-type: image/jpeg'); 

// Create image from existing image 
$jpgImage = imagecreatefromjpeg('file.jpg'); 

// Allocate color for text 
$white = imagecolorallocate($jpgImage, 255, 255, 255); 

// Set Path to Font File 
$font = 'arialbd.ttf'; 

// Text to print to image 
$text = 'Testing text output'; 

// Print Text On Image 
imagettftext($jpgImage, 75, 0, 50, 400, $white, $font, $text); 



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

// Clear Memory 
imagedestroy($jpgImage); 

?> 

Answer 1

//發送圖片到瀏覽器

imagepng($jpg_image); <------ remove image type png 

//輸出的圖像

imagejpeg($jpg_image); 

我測試過，它的工作原理。

<?php 
    //Set the Content Type 
    header('Content-type: image/jpeg'); 

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

    // Allocate A Color For The Text 
    $white = imagecolorallocate($jpg_image, 255, 255, 255); 

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

    // Set Text to Be Printed On Image 
    $text = "This is a sunset!"; 

    // Print Text On Image 
    imagettftext($jpg_image, 25, 0, 75, 300, $white, $font_path, $text); 

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

    // Clear Memory 
    imagedestroy($jpg_image); 
?>