生成海报
<?php
/**
* 生成宣传海报
* @param url 二维码链接
* @param array 参数,包括图片和文字
* @param string $filename 生成海报文件名,不传此参数则不生成文件,直接输出图片
* @return [type] [description]
*/
function createPoster($url,$config=array(),$filename=""){
header("Content-type: text/html; charset=utf-8");
//如果要看报什么错，可以先注释调这个header
if(empty($filename)){
header("content-type: image/png");
}
$headeDefault = array(
'left'=>0,
'top'=>0,
'right'=>0,
'bottom'=>0,
'width'=>100,
'height'=>100,
'opacity'=>100
);
$textDefault = array(
'text'=>'',
'left'=>0,
'top'=>0,
'fontSize'=>32,
'fontColor'=>'255,255,255',
'angle'=>0,
);
$imageDefault = array(
'left'=>0,
'top'=>0,
'right'=>0,
'bottom'=>0,
'width'=>100,
'height'=>100,
'opacity'=>100
);
$background = $config['background'];//海报最底层得背景
//背景方法
$backgroundInfo = getimagesize($background);
//print_r($backgroundInfo);exit;
$backgroundFun = 'imagecreatefrom'.image_type_to_extension($backgroundInfo[2], false);
$background = $backgroundFun($background);
$backgroundWidth = imagesx($background); //背景宽度
$backgroundHeight = imagesy($background); //背景高度
$imageRes = imageCreatetruecolor($backgroundWidth,$backgroundHeight);
$color = imagecolorallocate($imageRes, 0, 0, 0);
imagefill($imageRes, 0, 0, $color);
// imageColorTransparent($imageRes, $color); //颜色透明
imagecopyresampled($imageRes,$background,0,0,0,0,imagesx($background),imagesy($background),imagesx($background),imagesy($background));
//处理文字
if(!empty($config['text'])){
foreach ($config['text'] as $key => $val) {
$val = array_merge($textDefault,$val);
list($R,$G,$B) = explode(',', $val['fontColor']);
$fontColor = imagecolorallocate($imageRes, $R, $G, $B);
$val['left'] = $val['left']<0?$backgroundWidth- abs($val['left']):$val['left'];
$val['top'] = $val['top']<0?$backgroundHeight- abs($val['top']):$val['top'];
imagettftext($imageRes,$val['fontSize'],$val['angle'],$val['left'],$val['top'],$fontColor,$val['fontPath'],$val['text']);
}
}
//处理了二维码及头像图片
if(!empty($config['image'])){
$arrayimg=$config['image'];
foreach ($arrayimg as $key => $val) {
$val = array_merge($imageDefault,$val);
$info = getimagesize($val['url']);
$function = 'imagecreatefrom'.image_type_to_extension($info[2], false);
if($val['stream']){ //如果传的是字符串图像流
$info = getimagesizefromstring($val['url']);
$function = 'imagecreatefromstring';
}
$res = $function($val['url']);
$resWidth = $info[0];
$resHeight = $info[1];
//建立画板 ，缩放图片至指定尺寸
$canvas=imagecreatetruecolor($val['width'], $val['height']);
imagefill($canvas, 0, 0, $color);
//关键函数，参数（目标资源，源，目标资源的开始坐标x,y, 源资源的开始坐标x,y,目标资源的宽高w,h,源资源的宽高w,h）
imagecopyresampled($canvas, $res, 0, 0, 0, 0, $val['width'], $val['height'],$resWidth,$resHeight);
$val['left'] = $val['left']<0?$backgroundWidth- abs($val['left']) - $val['width']:$val['left'];
$val['top'] = $val['top']<0?$backgroundHeight- abs($val['top']) - $val['height']:$val['top'];
//放置图像
imagecopymerge($imageRes,$canvas, $val['left'],$val['top'],$val['right'],$val['bottom'],$val['width'],$val['height'],$val['opacity']);//左，上，右，下，宽度，高度，透明度
}
}if(!empty($config['head'])){
$arrayimg=$config['head'];
foreach ($arrayimg as $key => $val) {
$val = array_merge($imageDefault,$val);
$info = getimagesize($val['url']);
$function = 'imagecreatefrom'.image_type_to_extension($info[2], false);
if($val['stream']){ //如果传的是字符串图像流
$info = getimagesizefromstring($val['url']);
$function = 'imagecreatefromstring';
}
$res = $function($val['url']);
$resWidth = $info[0];
$resHeight = $info[1];
//建立画板 ，缩放图片至指定尺寸
$canvas=imagecreatetruecolor($val['width'], $val['height']);
imagefill($canvas, 0, 0, $color);
//关键函数，参数（目标资源，源，目标资源的开始坐标x,y, 源资源的开始坐标x,y,目标资源的宽高w,h,源资源的宽高w,h）
imagecopyresampled($canvas, $res, 0, 0, 0, 0, $val['width'], $val['height'],$resWidth,$resHeight);
$val['left'] = $val['left']<0?$backgroundWidth- abs($val['left']) - $val['width']:$val['left'];
$val['top'] = $val['top']<0?$backgroundHeight- abs($val['top']) - $val['height']:$val['top'];
//放置图像
imagecopymerge($imageRes,$canvas, $val['left'],$val['top'],$val['right'],$val['bottom'],$val['width'],$val['height'],$val['opacity']);//左，上，右，下，宽度，高度，透明度
}
}
//生成图片
if(!empty($filename)){
$res = imagejpeg ($imageRes,$filename,90); //保存到本地
imagedestroy($imageRes);
if(!$res){
return false;
}
return $filename;
}else{
imagejpeg ($imageRes); //在浏览器上显示
imagedestroy($imageRes);
}
}
/**
* @Author JunjunChen
* @DateTime 2018-11-05T10:50:28+0800
* @method 生成图片
* @param
* @version [version]
* @return [type] [description]
*/
function makeimg(){
header("Content-type: text/html; charset=utf-8");
$url='https://quan.alonesky.com';
include "phpqrcode/phpqrcode.php";
//$url = urldecode($url);
$qrcode = './qrcode/qrcode_'.time().'.jpg';// 生成的文件名
if(!file_exists($qrcode)){
$object = new \QRcode();
$object->png($url,$qrcode,'L','4');
}
$config = array(
'text'=>array(
array(
'text'=>'贪恋朝夕', //显示字体
'left'=>110, //距离左侧
'top'=>170, //距离顶部
'fontPath'=>'images/simhei.ttf', //字体文件
'fontSize'=>18, //字号
'fontColor'=>'255,0,0', //字体颜色
'angle'=>0, //字体角度
)
),
'head'=>array(
array(
'url'=>'./images/head.jpg',
'left'=>120,
'top'=>70,
'right'=>0,
'stream'=>0,
'bottom'=>0,
'width'=>60,
'height'=>60,
'opacity'=>100
)
),
'image'=>array(
array(
'url'=>$qrcode, //二维码资源
'stream'=>0,
'left'=>110,
'top'=>-110,
'right'=>0,
'bottom'=>0,
'width'=>110,
'height'=>110,
'opacity'=>100
)
),
'background'=>'./images/poster.png' //背景图
);
$makeimg='./makeimg/mimg_'.time().'.png';
if(!file_exists($makeimg)){
$imgurl=substr(createPoster($url,$config,$makeimg),1);
}else{
$imgurl=substr($makeimg,1);
}
//echo createPoster($url,$config);exit;
if(!empty($imgurl)){
return '图片生成成功';
//$data=array('msg'=>$imgurl,'status'=>'1');
}else{
return '图片生成失败';
//$data=array('msg'=>'图片生成错误','status'=>'0');
}
}
echo makeimg();
