php 图片上传类代码
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先来个简单的: 第二步上传类upfile.php <div class="codetitle"><a style="CURSOR: pointer" data="71787" class="copybut" id="copybut71787" onclick="doCopy('code71787')"> 代码如下:<div class="codebody" id="code71787"> <?php class UPImages { var $annexFolder = "annex";//附件存放点,默认为:annex var $smallFolder = "smallimg";//缩略图存放路径,注:必须是放在 $annexFolder下的子目录,默认为:smallimg var $markFolder = "mark";//水印图片存放处 var $upFileType = "jpg gif png";//上传的类型,默认为:jpg gif png rar zip var $upFileMax = 1024;//上传大小限制,单位是“KB”,默认为:1024KB var $fontType;//字体 var $maxWidth = 500; //图片最大宽度 var $maxHeight = 600; //图片最大高度 function UPImages($annexFolder,$smallFolder,$includeFolder) { $this->annexFolder = $annexFolder; $this->smallFolder = $smallFolder; $this->fontType = $includeFolder."/04B_08__.TTF"; } function upLoad($inputName) { $imageName = time();//设定当前时间为图片名称 if(@empty($_FILES[$inputName]["name"])) die(error("没有上传图片信息,请确认")); $name = explode(".",$_FILES[$inputName]["name"]);//将上传前的文件以“.”分开取得文件类型 $imgCount = count($name);//获得截取的数量 $imgType = $name[$imgCount-1];//取得文件的类型 if(strpos($this->upFileType,$imgType) === false) die(error("上传文件类型仅支持 ".$this->upFileType." 不支持 ".$imgType)); $photo = $imageName.".".$imgType;//写入数据库的文件名 $uploadFile = $this->annexFolder."/".$photo;//上传后的文件名称 $upFileok = move_uploaded_file($_FILES[$inputName]["tmp_name"],$uploadFile); if($upFileok) { $imgSize = $_FILES[$inputName]["size"]; $kSize = round($imgSize/1024); if($kSize > ($this->upFileMax1024)) { @unlink($uploadFile); die(error("上传文件超过 ".$this->upFileMax."KB")); } } else { die(error("上传图片失败,请确认你的上传文件不超过 $upFileMax KB 或上传时间超时")); } return $photo; } function getInfo($photo) { $photo = $this->annexFolder."/".$photo; $imageInfo = getimagesize($photo); $imgInfo["width"] = $imageInfo[0]; $imgInfo["height"] = $imageInfo[1]; $imgInfo["type"] = $imageInfo[2]; $imgInfo["name"] = basename($photo); return $imgInfo; } function smallImg($photo,$width=128,$height=128) { $imgInfo = $this->getInfo($photo); $photo = $this->annexFolder."/".$photo;//获得图片源 $newName = substr($imgInfo["name"],strrpos($imgInfo["name"],"."))."_thumb.jpg";//新图片名称 if($imgInfo["type"] == 1) { $img = imagecreatefromgif($photo); } elseif($imgInfo["type"] == 2) { $img = imagecreatefromjpeg($photo); } elseif($imgInfo["type"] == 3) { $img = imagecreatefrompng($photo); } else { $img = ""; } if(empty($img)) return False; $width = ($width > $imgInfo["width"]) ? $imgInfo["width"] : $width; $height = ($height > $imgInfo["height"]) ? $imgInfo["height"] : $height; $srcW = $imgInfo["width"]; $srcH = $imgInfo["height"]; if ($srcW $width > $srcH $height) { $height = round($srcH $width / $srcW); } else { $width = round($srcW $height / $srcH); } if (function_exists("imagecreatetruecolor")) { $newImg = imagecreatetruecolor($width,$height); ImageCopyResampled($newImg,$img,$width,$height,$imgInfo["width"],$imgInfo["height"]); } else { $newImg = imagecreate($width,$height); ImageCopyResized($newImg,$imgInfo["height"]); } if ($this->toFile) { if (file_exists($this->annexFolder."/".$this->smallFolder."/".$newName)) @unlink($this->annexFolder."/".$this->smallFolder."/".$newName); ImageJPEG($newImg,$this->annexFolder."/".$this->smallFolder."/".$newName); return $this->annexFolder."/".$this->smallFolder."/".$newName; } else { ImageJPEG($newImg); } ImageDestroy($newImg); ImageDestroy($img); return $newName; } function waterMark($photo,$text) { $imgInfo = $this->getInfo($photo); $photo = $this->annexFolder."/".$photo; $newName = substr($imgInfo["name"],".")) . "_mark.jpg"; switch ($imgInfo["type"]) { case 1: $img = imagecreatefromgif($photo); break; case 2: $img = imagecreatefromjpeg($photo); break; case 3: $img = imagecreatefrompng($photo); break; default: return False; } if (empty($img)) return False; $width = ($this->maxWidth > $imgInfo["width"]) ? $imgInfo["width"] : $this->maxWidth; $height = ($this->maxHeight > $imgInfo["height"]) ? $imgInfo["height"] : $this->maxHeight; $srcW = $imgInfo["width"]; $srcH = $imgInfo["height"]; if ($srcW $width > $srcH $height) { $height = round($srcH $width / $srcW); } else { $width = round($srcW * $height / $srcH); } if (function_exists("imagecreatetruecolor")) { $newImg = imagecreatetruecolor($width,$imgInfo["height"]); } $white = imageColorAllocate($newImg,255,255); $black = imageColorAllocate($newImg,0); $alpha = imageColorAllocateAlpha($newImg,230,40); ImageFilledRectangle($newImg,$height-26,$alpha); ImageFilledRectangle($newImg,13,$height-20,15,$height-7,$black); ImageTTFText($newImg,4.9,20,$height-14,$black,$this->fontType,$text[0]); ImageTTFText($newImg,$height-6,$text[1]); if($this->toFile) { if (file_exists($this->annexFolder."/".$this->markFolder."/".$newName)) @unlink($this->annexFolder."/".$this->markFolder."/".$newName); ImageJPEG($newImg,$this->annexFolder."/".$this->markFolder."/".$newName); return $this->annexFolder."/".$this->markFolder."/".$newName; } else { ImageJPEG($newImg); } ImageDestroy($newImg); ImageDestroy($img); return $newName; } } ?> 第三步:测试上传类test.php <div class="codetitle"><a style="CURSOR: pointer" data="49760" class="copybut" id="copybut49760" onclick="doCopy('code49760')"> 代码如下:<div class="codebody" id="code49760"> <?php $annexFolder = "annex"; $smallFolder = "smallimg"; $markFolder = "mark"; $includeFolder = "include"; require("./".$includeFolder."/upfile.php"); $img = new UPImages($annexFolder,$includeFolder); $text = array("www.jb51.cc","all rights reserved"); if(@$_GET["go"]) { $photo = $img->upLoad("upfile"); $img->maxWidth = $img->maxHeight = 350;//设置生成水印图像值 $img->toFile = true; $newSmallImg = $img->smallImg($photo); $newMark = $img->waterMark($photo,$text); echo " "; echo " "; echo "继续上传"; } else { ?> <form method="post" action="./test.php?go=go" enctype="multipart/form-data"> <input type="file" name="upfile"> <input type="submit" value="上传"> <?php } ?> (编辑:安卓应用网) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |
