php实现图片上传并利用ImageMagick生成缩略图
这篇文章主要为大家详细介绍了php实现图片上传并利用ImageMagick生成缩略图的相关资料,需要的朋友可以参考下。
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
- // Location to upload main image:
- $mainDir = $_SERVER['DOCUMENT_ROOT'].'/images/l/';
- // Location to create the thumb image:
- $smalDir = $_SERVER['DOCUMENT_ROOT'].'/images/s/';
- // Command to use:
- $command = '/usr/bin/convert';
- // Thumbnail width:
- $size = 210;
- // Make sure we have an image:
- if(isset($_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{
- ?>
- <form action=" <?php echo $_SERVER['PHP_SELF']; ?> " method="post" enctype="multipart/form-data">
- <p><input type="file" name="photo" /></p>
- <p><input type="submit" value="Upload!" name="submit" /></p>
- </form>
- <?php
- foreach(glob($smalDir.'*') as $img){
- echo ' <img src="'.str_replace($_SERVER['DOCUMENT_ROOT'], '',$img).'" /> ';
- }
- }
- ?>
希望本文所述对大家学习php程序设计有所帮助。