php实现图片上传并利用ImageMagick生成缩略图
使用ImageMagick,您可以轻松,更快地创建缩略图,比使用PHP的容易得多。
<?php //Locationtouploadmainimage: $mainDir=$_SERVER['DOCUMENT_ROOT'].'/images/l/'; //Locationtocreatethethumbimage: $smalDir=$_SERVER['DOCUMENT_ROOT'].'/images/s/'; //Commandtouse: $command='/usr/bin/convert'; //Thumbnailwidth: $size=210; //Makesurewehaveanimage: if(isset($_POST['submit'])){ if(getimagesize($_FILES['photo']['tmp_name'])){ $name=$_FILES['photo']['name']; $uploadfile=$mainDir.$name; move_uploaded_file($_FILES['photo']['tmp_name'],$uploadfile); $lrgImg=$mainDir.$name; $smlImg=$smalDir.$name; $imageMagick=$command."'".$lrgImg."'-resize'$size''".$smlImg."'"; shell_exec($imageMagick); } header("Location:/test.php"); exit; }else{ ?> <formaction="<?phpecho$_SERVER['PHP_SELF'];?>"method="post"enctype="multipart/form-data"> <p><inputtype="file"name="photo"/></p> <p><inputtype="submit"value="Upload!"name="submit"/></p> </form> <?php foreach(glob($smalDir.'*')as$img){ echo'<imgsrc="'.str_replace($_SERVER['DOCUMENT_ROOT'],'',$img).'"/>'; } } ?>
希望本文所述对大家学习php程序设计有所帮助。