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    ▪PHP 图片水印类代码       支持文字水印、图片水印 支持水印的位置随机或固定（九宫格） 水印透明度设置（图片水印和文字水印都支持） 文字水印的字体、颜色、大小设置 图片水印的背景透明 代码如下: <?php /.........

    ▪PHP setTime 设置当前时间的代码       代码如下: function _niceTime($minute){ $m = $minute - 5; $date = new DateTime(); $date->setTime(9, 00);//设置每天早上9点 return date("Y-m-d H:i",strtotime("+$m minute",$date->getTimestamp())); } ......

    ▪PHP 透明水印生成代码       代码如下: <?php /* * Created on 2010-10-27 * BY QQ542900563 * Copyrights Reserved 2000-2020 * 本例演示图片水印的生成办法 */ //分别载入两张图片 $im=imagecreatefromjpeg("liu.jpg"); $img2=imagecreatefrompng("m.png"); //取.........

代码如下:

<?php
/**
* 加水印类，支持文字图片水印的透明度设置、水印图片背景透明。
* 日期：2011-09-27
* 作者：www.
* 使用：
* $obj = new WaterMask($imgFileName); //实例化对象
* $obj->$waterType = 1; //类型：0为文字水印、1为图片水印
* $obj->$transparent = 45; //水印透明度
* $obj->$waterStr = 'www.'; //水印文字
* $obj->$fontSize = 16; //文字字体大小
* $obj->$fontColor = array(255,0255); //水印文字颜色（RGB）
* $obj->$fontFile = = 'AHGBold.ttf'; //字体文件
* $obj->output(); //输出水印图片文件覆盖到输入的图片文件
*/
class WaterMask{
public $waterType = 1; //水印类型：0为文字水印、1为图片水印
public $pos = 0; //水印位置
public $transparent = 45; //水印透明度

public $waterStr = 'www.'; //水印文字
public $fontSize = 16; //文字字体大小
public $fontColor = array(255,0,255); //水印文字颜色（RGB）
public $fontFile = 'AHGBold.ttf'; //字体文件

public $waterImg = 'logo.png'; //水印图片

private $srcImg = ''; //需要添加水印的图片
private $im = ''; //图片句柄
private $water_im = ''; //水印图片句柄
private $srcImg_info = ''; //图片信息
private $waterImg_info = ''; //水印图片信息
private $str_w = ''; //水印文字宽度
private $str_h = ''; //水印文字高度
private $x = ''; //水印X坐标
private $y = ''; //水印y坐标

function __construct($img) { //析构函数
$this->srcImg = file_exists($img) ? $img : die('"'.$img.'" 源文件不存在！');
}
private function imginfo() { //获取需要添加水印的图片的信息，并载入图片。
$this->srcImg_info = getimagesize($this->srcImg);
switch ($this->srcImg_info[2]) {
case 3:
$this->im = imagecreatefrompng($this->srcImg);
break 1;
case 2:
$this->im = imagecreatefromjpeg($this->srcImg);
break 1;
case 1:
$this->im = imagecreatefromgif($this->srcImg);
break 1;
default:
die('原图片（'.$this->srcImg.'）格式不对，只支持PNG、JPEG、GIF。');
}
}
private function waterimginfo() { //获取水印图片的信息，并载入图片。
$this->waterImg_info = getimagesize($this->waterImg);
switch ($this->waterImg_info[2]) {
case 3:
$this->water_im = imagecreatefrompng($this->waterImg);
break 1;
case 2:
$this->water_im = imagecreatefromjpeg($this->waterImg);
break 1;
case 1:
$this->water_im = imagecreatefromgif($this->waterImg);
break 1;
default:
die('水印图片（'.$this->srcImg.'）格式不对，只支持PNG、JPEG、GIF。');
}
}
private function waterpos() { //水印位置算法
switch ($this->pos) {
case 0: //随机位置
$this->x = rand(0,$this->srcImg_info[0]-$this->waterImg_info[0]);
$this->y = rand(0,$this->srcImg_info[1]-$this->waterImg_info[1]);
break 1;
case 1: //上左
$this->x = 0;
$this->y = 0;
break 1;
case 2: //上中
$this->x = ($this->srcImg_info[0]-$this->waterImg_info[0])/2;
$this->y = 0;
break 1;
case 3: //上右
$this->x = $this->srcImg_info[0]-$this->waterImg_info[0];
$this->y = 0;
break 1;
case 4: //中左
$this->x = 0;
$this->y = ($this->srcImg_info[1]-$this->waterImg_info[1])/2;
break 1;
case 5: //中中
$this->x = ($this->srcImg_info[0]-$this->waterImg_info[0])/2;
$this->y = ($this->srcImg_info[1]-$this->waterImg_info[1])/2;
break 1;
case 6: //中右
$this->x = $this->srcImg_info[0]-$this->waterImg_info[0];
$this->y = ($this->srcImg_info[1]-$this->waterImg_info[1])/2;
break 1;
case 7: //下左
$this->x = 0;
$this->y = $this->srcImg_info[1]-$this->waterImg_info[1];
break 1;
case 8: //下中
$this->x = ($this->srcImg_info[0]-$this->waterImg_info[0])/2;
$this->y = $this->srcImg_info[1]-$this->waterImg_info[1];
break 1;
default: //下右
$this->x = $this->srcImg_info[0]-$this->waterImg_info[0];
$this->y = $this->srcImg_info[1]-$this->waterImg_info[1];
break 1;
}
}
private function waterimg() {
if ($this->srcImg_info[0] <= $this->waterImg_info[0] || $this->srcImg_info[1] <= $this->waterImg_info[1]){
die('水印比原图大！');
}
$this->waterpos();
$cut = imagecreatetruecolor($this->waterImg_info[0],$this->waterImg_info[1]);
imagecopy($cut,$this->im,0,0,$this->x,$this->y,$this->waterImg_info[0],$this->waterImg_info[1]);
$pct = $this->transparent;
imagecopy($cut,$this->water_im,0,0,0,0,$this->waterImg_info[0],$this->waterImg_info[1]);
imagecopymerge($this->im,$cut,$this->x,$this->y,0,0,$this->waterImg_info[0],$this->waterImg_info[1],$pct);
}
private function waterstr() {
$rect = imagettfbbox($this->fontSize,0,$this->fontFile,$this->waterStr);
$w = abs($rect[2]-$rect[6]);
$h = abs($rect[3]-$rect[7]);
$fontHeight = $this->fontSize;
$this->water_im = imagecreatetruecolor($w, $h);
imagealphablending($this->water_im,false);
imagesavealpha($this->water_im,true);
$white_alpha = imagecolorallocatealpha($this->water_im,255,255,255,127);
imagefill($this->water_im,0,0,$white_alpha);
$color = imagecolorallocate($this->water_im,$this->fontColor[0],$this->fontColor[1],$this->fontColor[2]);
imagettftext($this->water_im,$this->fontSize,0,0,$this->fontSize,$color,$this->fontFile,$this->waterStr);
$this->waterImg_info = array(0=>$w,1=>$h);
$this->waterimg();
}
function output() {
$this->imginfo();
if ($this->waterType == 0) {
$this->waterstr();
}else {
$this->waterimginfo();
$this->waterimg();
}
switch ($this->srcImg_info[2]) {
case 3:
imagepng($this->im,$this->srcImg);
break 1;
case 2:
imagejpeg($this->im,$this->srcImg);
break 1;
case 1:
imagegif($this->im,$this->srcImg);
break 1;
default:
die('添加水印失败！');
break;
}
imagedestroy($this->im);
imagedestroy($this->water_im);
}
}
?>

代码如下:

function _niceTime($minute){
$m = $minute - 5;
$date = new DateTime();
$date->setTime(9, 00);//设置每天早上9点
return date("Y-m-d H:i",strtotime("+$m minute",$date->getTimestamp()));
}

代码如下:

<?php
/*
* Created on 2010-10-27
* BY QQ542900563
* Copyrights Reserved 2000-2020
* 本例演示图片水印的生成办法
*/
//分别载入两张图片
$im=imagecreatefromjpeg("liu.jpg");
$img2=imagecreatefrompng("m.png");

//取得各自的长宽，计算位置
$im_WH=getimagesize("liu.jpg");
$im_W=$im_WH[0];
$im_H=$im_WH[1];

$img2_WH=getimagesize("m.png");
$img2_W=$img2_WH[0];
$img2_H=$img2_WH[1];

//定义存放的位置
$NewX=$im_W-$img2_W;
$NewY=$im_H-$img2_H;

//填充
imagecopy($im,$img2,$NewX,$NewY,0,0,$img2_W,$img2_H);

header("Content-type:image/jpeg");
imagejpeg($im);

?>