这是一款完美的php文件上传代码,图片上传成功后并自动给图片增加上水印,这样很好的快速的提高的了要手工一张张增加水印效果,代码如下:
function upload( $uploadfile , $watermark =1, $watertype =1, $content ){ foreach ( $uploadfile [ 'name' ] as $key => $name ) { //多文件上传函数 uploadall( $uploadfile , $key , $watermark , $watertype , $content ); } } function uploadall( $uploadfile , $i , $watermark , $watertype , $content ) { $watermark = $watermark ; //是否附加水印(1为加水印,其他为不加水印); $watertype = $watertype ; //水印类型(1为文字,2为图片) $watercontent = $content ; //水印的内容 if ( empty empty ( $uploadfile [ 'name' ][ $i ])) { die ( "未选择文件上传" ); } if ( $uploadfile [ 'error' ][ $i ] == 2) { //验证html判断结果 die ( "上传的文件太大了" ); } $allow_filemaxsize = 2048000; // 2m $filesize = $uploadfile [ 'size' ][ $i ]; if ( $filesize > $allow_filemaxsize ) { die ( "上传的文件太大了" ); } $allow_filetypes = array ( "jpeg" , "gif" , "png" , "jpg" , "pjpeg" ); //允许上传的文件统一资源类型 mimetype $allow = false; //默认都不允许 $mimetype = $uploadfile [ 'type' ][ $i ]; //上传文件的mime文件类型 foreach ( $allow_filetypes as $t ) { if ( strpos ( $mimetype , $t ) !== false) { $allow = true; //找到了符合上传条件的文件类型 break ; } } if ( $allow == false) { die ( "上传的文件类型不被允许" ); } $result = is_uploaded_file ( $uploadfile [ 'tmp_name' ][ $i ]); //判断是否为上传动作产生的 if (! $result ) { die ( "上传的文件有误" ); } $uploaddir = "img/" ; //上传文件保存目录 if (! file_exists ( $uploaddir )) mkdir ( $uploaddir , 0777, true); //若上传保存目录不存在，则递归创建 /**重命名文件**/ $filetype = explode ( "." , $uploadfile [ 'name' ][ $i ]); $filetype = array_pop ( $filetype ); $uploadfilename = time(). "." . $filetype ; $_session [ 'filename' ] = $uploadfilename ; //end $result = move_uploaded_file( $uploadfile [ 'tmp_name' ][ $i ], $uploaddir . $uploadfilename ); if ( $result ) { echo "文件上传成功" ; } else { switch ( $uploadfile [ 'error' ][ $i ]) { case 1: return "上传的文件超出了php.ini中设定的最大值" ; break ; case 2: return "上传的文件超出了html中设定的最大值" ; break ; case 3: return "文件只有部分被上传" ; break ; case 4; return "没有文件被上传" ; break ; default : die ( "文件上传失败" ); } } if ( $watermark ==1) { $iinfo = getimagesize ( $uploaddir . $uploadfilename ); //获取图片的相关信息，得到数组 $nimage =imagecreatetruecolor( $iinfo [0], $iinfo [1]); $white =imagecolorallocate( $nimage ,255,255,255); //设置背景颜色为白色 $black =imagecolorallocate( $nimage ,0,0,0); //设置背景颜色为黑色 $red =imagecolorallocate( $nimage ,255,0,0); //设置背景颜色为红色 imagefill( $nimage ,0,0, $white ); //背景填充为白色 switch ( $iinfo [2]) { case 1: $simage =imagecreatefromgif( $uploaddir . $uploadfilename ); break ; case 2: $simage =imagecreatefromjpeg( $uploaddir . $uploadfilename ); break ; case 3: $simage =imagecreatefrompng( $uploaddir . $uploadfilename ); break ; case 6: $simage =imagecreatefromwbmp( $uploaddir . $uploadfilename ); break ; default : die ( "不支持的文件类型" ); exit ; } imagecopy( $nimage , $simage ,0,0,0,0, $iinfo [ '0' ], $iinfo [ '1' ]); switch ( $watertype ) { case 1: //加水印字符串 imagestring( $nimage ,5, $iinfo [ '0' ]/2-50, $iinfo [ '1' ]-30, $watercontent , $black ); break ; case 2: //加水印图片 $simage1 =imagecreatefromgif( $watercontent ); $size = getimagesize ( $watercontent ); imagecopy( $nimage , $simage1 , $iinfo [ '0' ]/2+50, $iinfo [ '1' ]-100,0,0, $size [0], $size [1]); imagedestroy( $simage1 ); break ; } switch ( $iinfo [2]) { case 1: imagejpeg( $nimage , $uploaddir . $uploadfilename ); //将图像$nimage以$destination文件名创建一个jpeg的格式文件 break ; case 2: imagejpeg( $nimage , $uploaddir . $uploadfilename ); break ; case 3: imagepng( $nimage , $uploaddir . $uploadfilename ); break ; case 6: imagewbmp( $nimage , $uploaddir . $uploadfilename ); break ; } imagedestroy( $nimage ); //覆盖原上传文件 imagedestroy( $simage ); } //开源代码phpfensi.com } if (@ $_get [ 'act' ] == "insert" ) { //未作参数校验 //该函数的四个参数分别是：上传控件的name值；是否加水印（1为加，其他数字为不佳）； //水印的类型（1为字符串，2为图片）；水印的内容,字符串时写数据，图片时写图片的地址； $picture = upload( $_files [ 'picture' ],1,2, "img/watermark.gif" ); //上传文件，并返回上传后的文件路径名 }上传代码如下:
< form method = "post" action = "" enctype = "multipart/form-data" > < table border = "1" cellpadding = "5" cellspacing = "0" > < tr > < td > 产品图片： </ td > < td > < input type = "hidden" name = "max_file_size" value = "1024000" > < input type = "file" name = "picture[]" > </ td > </ tr > < tr > < td colspan = "2" align = "center" > < input type = "submit" value = "提交" > </ td > </ tr > </ table > </ form >查看更多关于php图片上传加水印,自动增加水印的详细内容...
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