[英]imagettftext function not working in php
我的驗證碼有以下代碼。 圖像中的線條已生成,但不顯示4位數字。 我認為這有問題
imagettftext($ image,$ font_size,0,15,30,$ text_color,'font.TTF',$ text);
代碼功能。 我嘗試使用$ _server ['DOCUMENT_ROOT'];設置字體文件的路徑; 卻沒用
這是代碼:
<?php
session_start();
header('Content-type: image/jpeg');
$text= $_SESSION['secure'];
$font_size =30;
$image_width= 110;
$image_height=40;
$image=imagecreate($image_width,$image_height);
imagecolorallocate($image, 255, 255, 255);
$text_color = imagecolorallocate($image, 0, 0, 0);
for($x=1; $x<=30; $x++){
$x1 = rand(1,100);
$x2 = rand(1,100);
$y1 = rand(1,100);
$y2 = rand(1,100);
imageline($image, $x1, $x2, $y1, $y2, $text_color);
}
imagettftext($image,$font_size,0,15,30,$text_color,'font.TTF',$text);
imagejpeg($image);
?>
下面的代碼完美地在我的電腦上工作
記住字體路徑應該正確。
輸出-
<?php
// Set the content-type
header('Content-type: image/png');
// Create the image
$im = imagecreatetruecolor(400, 30);
// 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 = 'Testing...';
// Replace path by your own font path
$font = 'arial.ttf';
// Add some shadow to the text
imagettftext($im, 20, 0, 11, 21, $grey, $font, $text);
// Add the text
imagettftext($im, 20, 0, 10, 20, $black, $font, $text);
// Using imagepng() results in clearer text compared with imagejpeg()
imagepng($im);
imagedestroy($im);
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