php图片文件上传详细分析

upload_err_ok no error occurred. 上传成功 upload_err_ini_size the uploaded file exceeds the maximum value specified in the php教程.ini file. 超出最大上传尺寸 upload_err_form_size the uploaded file exceeds the maximum value specified by the

upload_err_ok no error occurred.

上传成功

upload_err_ini_size the uploaded file exceeds the maximum value specified in the php教程.ini file.
超出最大上传尺寸

upload_err_form_size the uploaded file exceeds the maximum value specified by the max_file_size hidden widget.
超出form设置最大上传尺寸

upload_err_partial the file upload was canceled and only part of the file was uploaded.

upload_err_nofile no file was uploaded.

未上传文件

action="" method="post">

实例一

]

if ( isset( $_files['fupload'] ) ) {

print "name: ". $_files['fupload']['name'] ."
";
print "size: ". $_files['fupload']['size'] ." bytes
";
print "temp name: ".$_files['fupload']['tmp_name'] ."
";
print "type: ". $_files['fupload']['type'] ."
";
print "error: ". $_files['fupload']['error'] ."
";

if ( $_files['fupload']['type'] == "image/gif" ) {

$source = $_files['fupload']['tmp_name'];
$target = "upload/".$_files['fupload']['name'];
move_uploaded_file( $source, $target );// or die ("couldn’t copy");
$size = getimagesize( $target );

$imgstr = "

$imgstr .= "src="$target" alt="uploaded image" />

";

print $imgstr;
}
}
?>

action="" method="post">

文件上传实例二

$maxsize=28480;
if (!$http_post_vars['submit']) {
$error=" ";
}
if (!is_uploaded_file($http_post_files['upload_file']['tmp_name']) and !isset($error)) {
$error = "you must upload a file!

";
unlink($http_post_files['upload_file']['tmp_name']);
}
if ($http_post_files['upload_file']['size'] > $maxsize and !isset($error)) {
$error = "error, file must be less than $maxsize bytes.

";
unlink($http_post_files['upload_file']['tmp_name']);
}
if (!isset($error)) {
move_uploaded_file($http_post_files['upload_file']['tmp_name'],
"uploads/".$http_post_files['upload_file']['name']);
print "thank you for your upload.";
exit;
}
else
{
echo ("$error");
}
?>

method="post" enctype="multipart/form-data">
choose a file to upload:

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