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PHP上传图片，以及为图片添加简单…

作者：菜鸟追梦旅行 | 2024-06-03 19:47:09

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PHP上传图片，以及为图片添加简单…

// 上传文件类型列表

$uptypes = array (

'image/jpg',

'image/png',

'image/jpeg',

'image/pjpeg',

'image/gif',

'image/bmp',

'image/x-png'

);

$max_file_size = 20000000; //上传文件大小限制，单位BYTE

$destination_folder = '/media/img/icon/'; //上传文件路径

$watermark = 2; //是否附加水印(1为加水印,其他为不加水印);

$watertype = 1; //水印类型(1为文字,2为图片)

$waterposition = 1; //水印位置(1为左下角,2为右下角,3为左上角,4为右上角,5为居中);

$waterstring = "@Leo-Jen"; //水印字符串

$waterimg = "xplore.gif"; //水印图片

$imgpreview = 1; //是否生成预览图(1为生成,其他为不生成);

$imgpreviewsize = 1 / 2; //缩略图比例

if ($_SERVER['REQUEST_METHOD'] == 'POST') {

//判断是否有上传文件

if (is_uploaded_file($_FILES['upfile']['tmp_name'])) {

$upfile = $_FILES['upfile'];

$name = $upfile['name']; //文件名

$type = $upfile['type']; //文件类型

$size = $upfile['size']; //文件大小

$tmp_name = $upfile['tmp_name']; //临时文件

$error = $upfile['error']; //出错原因

if ($max_file_size < $size) { //判断文件的大小

echo '上传文件太大';

exit ();

}

if (!in_array($type, $uptypes)) { //判断文件的类型

echo '上传文件类型不符' . $type;

exit ();

}

if (!file_exists($destination_folder)) {

mkdir($destination_folder);

}

$pinfo = pathinfo($name);

$ftype = $pinfo['extension'];

if (file_exists("media/img/icon/" . time() . "." . $ftype)) {

// echo $_FILES["upfile"]["name"] . " already exists. ";

} else {

move_uploaded_file($_FILES["upfile"]["tmp_name"], "media/img/icon/" . time() . "." . $ftype);

// echo "Stored in: " . "media/img/" . $_FILES["upfile"]["name"];

}

$destination = "media/img/icon/" . time() . "." . $ftype;

// if (file_exists($destination) ) {

// echo "同名的文件已经存在了";

// exit ();

// }

// if (!move_uploaded_file($tmp_name, $destination)) {

// echo "移动文件出错";

// exit ();

// }

$pinfo = pathinfo($destination);

$fname = $pinfo['basename'];

$image_size = getimagesize("media/img/icon/" . $fname);

// echo " 已经成功上传
文件名: " . $destination_folder . $fname . "
";

// echo " 宽度:" . $image_size[0];

// echo " 长度:" . $image_size[1];

// echo "
大小:" . $size. " bytes";

if ($watermark == 1) {

$iinfo = getimagesize($destination, $iinfo);

$nimage = imagecreatetruecolor($image_size[0], $image_size[1]);

$white = imagecolorallocate($nimage, 255, 255, 255);

$black = imagecolorallocate($nimage, 0, 0, 0);

$red = imagecolorallocate($nimage, 255, 0, 0);

imagefill($nimage, 0, 0, $white);

switch ($iinfo[2]) {

case 1 :

$simage = imagecreatefromgif($destination);

break;

case 2 :

$simage = imagecreatefromjpeg($destination);

break;

case 3 :

$simage = imagecreatefrompng($destination);

break;

case 6 :

$simage = imagecreatefromwbmp($destination);

break;

default :

die("不支持的文件类型");

exit;

}

imagecopy($nimage, $simage, 0, 0, 0, 0, $image_size[0], $image_size[1]);

imagefilledrectangle($nimage, 1, $image_size[1] - 15, 80, $image_size[1], $white);

switch ($watertype) {

case 1 : //加水印字符串

imagestring($nimage, 2, 3, $image_size[1] - 15, $waterstring, $black);

break;

case 2 : //加水印图片

$simage1 = imagecreatefromgif("xplore.gif");

imagecopy($nimage, $simage1, 0, 0, 0, 0, 85, 15);

imagedestroy($simage1);

break;

}

switch ($iinfo[2]) {

case 1 :

//imagegif($nimage, $destination);

imagejpeg($nimage, $destination);

break;

case 2 :

imagejpeg($nimage, $destination);

break;

case 3 :

imagepng($nimage, $destination);

break;

case 6 :

imagewbmp($nimage, $destination);

//imagejpeg($nimage, $destination);

break;

}

//覆盖原上传文件

imagedestroy($nimage);

imagedestroy($simage);

}

// if ($imgpreview == 1) {

// echo "
图片预览:
";

// echo "

echo " alt=\"图片预览:\r文件名:" .$destination_folder . $fname . "\r上传时间:\">";

// }

echo $destination_folder . $fname;

}

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