ThinkPHP 图片处理函数,需要文字水印字体,可在windows下 控制面板 > 大图标(右上角) > 字体 找到需要的字体
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/*** 图像的裁剪、缩放、加水印* @param string $path 路径* @param int $width 裁剪的宽度/限制的高度或宽度,当有$height值时此值为图片的宽度,否则为限制的宽度或高度* @param int $height [可选]裁剪的高度* @param boolean $water [可选]是否加水印* @param int $word [可选]水印文字*/function zoom_image($path,$width = 300,$height = null,$water = null,$word = 'water'){
$image = new \Think\Image();
$image->open($path);
$imgWidth = $image->width();
$imgHeight = $image->height();
// 限制尺寸
if($width and !$height){
$maxSize = $width;
// 宽度或高度大于规定尺寸时
if($imgWidth > $maxSize or $imgHeight > $maxSize){
$size = image_min_width($imgWidth,$imgHeight,$maxSize);
$image->thumb($size['width'], $size['height']);
$do = true;
$dowater = true;
}
// 裁剪固定尺寸
}else if($width and $height){
$size = image_min_width($imgWidth,$imgHeight,$width);
$image->thumb($size['width'], $size['height'])->crop($width, $height);
$do = true;
$dowater = true;
}
if($dowater and $water and $word){
$image->text($word,'./Public/images/arial.ttf',20,'#dddddd', \Think\Image::IMAGE_WATER_SOUTHEAST,-10);
}
// 未操作则不保存
if($do){
$image->save($path);
}
} |