php实现图片上传并利用ImageMagick生成缩略图_php技巧

<&#63;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{
&#63;>
<form action=" <&#63;php echo $_SERVER['PHP_SELF']; &#63;> " method="post" enctype="multipart/form-data">
<p><input type="file" name="photo" /></p>
<p><input type="submit" value="Upload!" name="submit" /></p>
                    <div class="aritcle_card">
                        <a class="aritcle_card_img" href="/ai/1069">
                            <img src="https://img.php.cn/upload/ai_manual/000/000/000/175680048848883.png" alt="音疯">
                        </a>
                        <div class="aritcle_card_info">
                            <a href="/ai/1069">音疯</a>
                            <p>音疯是昆仑万维推出的一个AI音乐创作平台，每日可以免费生成6首歌曲。</p>
                            <div class="">
                                <img src="/static/images/card_xiazai.png" alt="音疯">
                                <span>178</span>
                            </div>
                        </div>
                        <a href="/ai/1069" class="aritcle_card_btn">
                            <span>查看详情</span>
                            <img src="/static/images/cardxiayige-3.png" alt="音疯">
                        </a>
                    </div>
                
</form>
<&#63;php
foreach(glob($smalDir.'*') as $img){
echo ' <img  src="'.str_replace($_SERVER['DOCUMENT_ROOT'], '',$img).'" / alt="php实现图片上传并利用ImageMagick生成缩略图_php技巧" > ';
}
}
&#63;>