php实现图片上传并利用ImageMagick生成缩略图_PHP教程

php实现图片上传并利用ImageMagick生成缩略图

2020-12-28 14:41小贝 PHP教程

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。

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									<?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).'" /> ';

									}

									}

									?>