照片水印
<?php
//set_time_limit(0);//0不限制
error_reporting(E_ALL ^ E_NOTICE);
/**
* 照片水印
* 将拍摄时间作为水印打在照片，仅支持jpg
*
*/
class photoWaterMark{
var $sourceDir;// 源照片目录
var $storeDir;// 存储目录
var $text; //要在图片里显示的内容
var $font = 'C:\Windows\Fonts\arial.ttf'; //字体文件位置
var $angle = 0; //字体输出角度
var $size = 100; //字体大小
var $showX = 100; //输出位置x坐标
var $showY = 200; //输出位置y坐标
/**
* 整理文字
* @param [type] $instring text
* @return [type] [description]
*/
function createText($instring) {
$outstring = "";
$max = strlen ( $instring );
for($i = 0; $i < $max; $i ++) {
$h = ord ( $instring [$i] );
if ($h >= 160 && $i < $max - 1) {
$outstring .= substr ( $instring, $i, 2 );
$i ++;
} else {
$outstring .= $instring [$i];
}
}
return $outstring;
}
/**
* 移动文件
* @param [type] $fromFile 源文件
* @param [type] $toDir 目标目录
* @return [type] [description]
*/
function mvFile($fromFile,$toDir){
$fileName = strrchr($fromFile, '/');
$toFile = $toDir.$fileName;
rename($fromFile,$toFile);
}
/**
* 遍历目录下的文件
* @param [type] $path 目录
* @return [type] [description]
*/
function iteralDir($path){
$filearr = array();
foreach (glob($path.'\*') as $file){
if(is_dir($file)){
$filearr = array_merge($filearr,iteral($file));
}else{
$filearr[] = str_replace('\\','/',$file);
}
}
return $filearr;
}
/**
* 给图片打水印
*
* @param [array] $imagePath 图片路径
*
* @return [type] [description]
*/
function waterMark($imagePath){
//输出头内容
//header('Content-type: image/jpg');
//建立图象
$imageSize = getimagesize($imagePath);
if(strpos($imageSize['mime'],'png')){//png 移动操作
$this->mvFile($imagePath,$this->storeDir);
}else{
$image = imagecreatefromjpeg ($imagePath);
}
$imageExif = exif_read_data($imagePath);
$imageInfo = [
'DateTimeOriginal' => $imageExif['DateTimeOriginal'],
'FileDateTime' => date('Y:m:d H:i:s',$imageExif['FileDateTime']),
'DateTime' => $imageExif['DateTime'],
'width'=>$imageSize[0],
'height'=>$imageSize[1]
];
//text
foreach (['DateTimeOriginal','FileDateTime','DateTime'] as $key) {
if($imageExif[$key]){
$this->text = $imageInfo[$key];
break;
}
}
if(!$this->text){//移动操作
$this->mvFile($imagePath,$this->storeDir);
}else{
$this->text = date("Y/m/d H:i:s",strtotime($this->text));
}
//height width
$length = $imageInfo['width'] > $imageInfo['height'] ? $imageInfo['height'] : $imageInfo['width'];
$offset = round($length/30);
$this->size = $offset;
$this->showX = $offset-($offset/2);
$this->showY = $offset+($offset/2);
//定义颜色
//$color = imagecolorallocate($image, 255, 0, 0);//red
//$color = imagecolorallocate ( $image, 255, 255, 255 );//white
//$color = imagecolorallocate ( $image, 0, 0, 0 );//black
$color = imagecolorallocate($image, 255,255,0);//yellow
//显示文字
$txt = $this->createText ( $this->text );
//写入文字
imagettftext ( $image, $this->size, $this->angle, $this->showX, $this->showY, $color, $this->font, $txt );
//ImageString($image,5,50,10,$txt,$white);
//显示图形
$fileName = strrchr($imagePath, '/');
$toFile = $this->storeDir.$fileName;
imagejpeg ( $image ,$toFile);
//imagegif ( $image, "a2.jpg" );
ImageDestroy ( $image );
unlink($imagePath);//删除图片
}
/**
* 执行
* @param [array] $params [
* sourceDir 源照片目录
* storeDir 存储目录
* ]
* @return [type] [description]
*/
function execute($params) {
$this->sourceDir = $params['sourceDir'];
$this->storeDir = $params['storeDir'];
$sourcePhotos = $this->iteralDir($this->sourceDir);
if(empty($sourcePhotos)){
exit("empty dir");
}
foreach ($sourcePhotos as $imagePath) {
$this->waterMark($imagePath);
}
}
}
//使用
$photoWaterMark = new photoWaterMark();
$photoWaterMark->execute(['sourceDir'=>'./photo/2017-09-11/zsc','storeDir'=>'./photo/newphoto/zsc']);
?>