这篇文章主要介绍了PHP安全上传图片的方法,可检测图片类型实现安全判断图片的功能,非常具有实用价值,需要的朋友可以参考下
本文实例讲述了PHP安全上传图片的方法。分享给大家供大家参考。具体分析如下：
这段代码用于上传图片，可以根据图片类型检测图片是否安全，不是简单的检测扩展名
<?php // upload.php echo <<<_END <html><head><title>PHP Form Upload</title></head><body> <form method='post' action='upload2.php' enctype='multipart/form-data'> Select a JPG, GIF, PNG or TIF File: <input type='file' size='10' /> <input type='submit' value='Upload' /></form> _END; if ($_FILES) { $name = $_FILES['filename']['name']; switch($_FILES['filename']['type']) { case 'image/jpeg': $ext = 'jpg'; break; case 'image/gif': $ext = 'gif'; break; case 'image/png': $ext = 'png'; break; case 'image/tiff': $ext = 'tif'; break; default: $ext = ''; break; } if ($ext) { $n = "image.$ext"; move_uploaded_file($_FILES['filename']['tmp_name'], $n); echo "Uploaded image '$name' as 'https://www.jb51.net/article/$n':<br />"; echo "<img src='https://www.jb51.net/article/$n' />"; } else echo "'$name' is not an accepted image file"; } else echo "No image has been uploaded"; echo "</body></html>"; ?>
希望本文所述对大家的php程序设计有所帮助。
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