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' name='filename' 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 '$n':<br />"; echo "<img src='$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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