php合并图片，_PHP教程
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2023-12-23 18:02:33
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php合并图片，
在项目中需要把几张图片合并在一起，如下图
分别由头、身、腿三张图片合并起来
代码如下：
1 function combineImage($head_img,$middle_img,$footer_img,$save_path){ 2 $source_w = 400; 3 $source_h = 1142; 4 //取头部图片大小 5 $head_size = getimagesize($head_img); 6 $head_height = $head_size['1']; 7 $head_width = $head_size['0']; 8 $head_start_x = floor(($source_w-$head_width)/2);//头部开始位置 9 //取中间图片大小 10 $midd_size = getimagesize($middle_img); 11 $midd_height = $midd_size['1']; 12 $midd_width = $midd_size['0']; 13 $midd_start_y = $head_height-15;//中间开始Y坐标，因为头部的图片底部有空白，所以减去15 14 $midd_start_x = floor(($source_w-$midd_width)/2); 15 16 //取底部图片大小 17 $foot_size = getimagesize($footer_img); 18 $foot_height = $foot_size[1]; 19 $foot_width = $foot_size[0]; 20 $foot_start_x = floor(($source_w-$foot_width)/2);//底部图片x坐标 21 $foot_start_y = $source_h-$foot_height;//底部图片y坐标 22 23 $head = imagecreatefrompng($head_img); 24 $middle = imagecreatefrompng($middle_img); 25 $footer = imagecreatefrompng($footer_img); 26 27 $bg_img = imageCreatetruecolor($source_w,$source_h);//生成背景图片 28 $color = imagecolorallocate($bg_img, 255, 255, 255); //设置白色背景 29 imagefill($bg_img, 0, 0, $color);//背景色填充 30 imageColorTransparent($bg_img, $color);//透明 31 imagecopyresampled($bg_img,$head,$head_start_x,0,0,0,$head_width,$head_height,$head_width,$head_height); 32 imagecopyresampled($bg_img,$middle,$midd_start_x , $midd_start_y,0,0,$midd_width,$midd_height,$midd_width,$midd_height); 33 imagecopyresampled($bg_img,$footer,$foot_start_x , $foot_start_y,0,0,$foot_width,$foot_height,$foot_width,$foot_height); 34 35 imagepng($bg_img,$save_path ); 36 } 37 $head = dirname(__FILE__).'/public/images/head.png'; 38 $midd = dirname(__FILE__).'/public/images/midd1.png'; 39 $foot = dirname(__FILE__).'/public/images/foot1.png'; 40 $save_path = dirname(__FILE__)."/public/images/testcomblie.png"; 41 combineImage($head,$midd,$foot,$save_path);