本文介绍下,使用php代码在图片上加水印或文字的例子,有需要的朋友参考下吧。
php水印代码,如下: <?php /** * 图片加水印、加文字 * edit bbs.it-home.org */ header("content-type:image/png"); $button_text = "click here"; $color = 'purple'; $image = imagecreatefrompng("image/".$color.'.png'); $width_image = imagesx($image); $height_image = imagesy($image); $width_image_wo_margins = $width_image - (2*2); $height_image_wo_margins = $height_image - (2*2); //echo $width_image; //echo "<br>"; //Echo $height_image; //exit; $font_size = 88; //putenv("GDFONTPATH=C:/WINDOWS/Fonts"); $fontname = "ARIAL.TTF"; do { $font_size--; $bbox = imagettfbbox($font_size,0,$fontname,$button_text); $right_text = $bbox[2]; $left_text = $bbox[0]; $width_text = $right_text - $left_text; $height_text = abs($bbox[7] - $bbox[1]); }while($font_size > 8 && ($height_text > $height_image_wo_margins || $width_text > $width_image_wo_margins)); $text_x = $width_image/2.0 - $width_text/2.0; $text_y = $height_image/2.0 - $height_text/2.0; if($left_text < 0){ $text_x += abs($left_text); } $above_line_text = abs($bbox[7]); $text_y += $above_line_text; $text_y -= 2; $white = imagecolorallocate($image,255,255,255); imagettftext($image,$font_size,0,$text_x,$text_y,$white,$fontname,$button_text); imagepng($image); imagedestroy($image); ?> Copier après la connexion 以上代码实现: 在一个按钮图片上面添加一个click here的英文字。 个人觉得,是一个比较简单的学习php图片水印的例子,适合新手朋友参考。 |