前台传图片的base64格式，后台处理方式
//处理图片信息 返回对应的路径
public function uploadBaseIma($imgArr){
???$result = array();
???//将路径直接设置在uploads下
???if($imgArr){
???????foreach($imgArr as $k => $v){
???????????if($v){
???????????????//判断上传的是否为原地址
???????????????$a = preg_match(‘/.*(\.png|\.jpg|\.jpeg|\.gif)$/‘, $v);
???????????????if($a){
???????????????????//是就存储不变,将文件路径存储
???????????????????$b = substr($v,36);
???????????????????$result[$k] = $b;
???????????????}else{
???????????????????//不是就上传图片
???????????????????$address = $this->baseChangeImg($v);
???????????????????$result[$k] = $address;
???????????????}
???????????}else {
???????????????return array();
???????????}
???????}
???????return $result;
???}
}
//base64转化为本地图片
public function baseChangeImg($base)
{
???//匹配出图片的格式
???if (preg_match(‘/^(data:\s*image\/(\w+);base64,)/‘, $base, $result)) {
???????$type = $result[2];
???????$path = ‘/base‘ . date(‘Ymd‘, time()) . "/";
???????$new_file = public_path(‘uploads‘) . $path;
???????if (!file_exists($new_file)) {
???????????//检查是否有该文件夹，如果没有就创建，并给予最高权限
???????????mkdir($new_file, 0700);
???????}
???????$name = uniqid() . ".{$type}";
???????$new_file = $new_file . $name;
???????if (file_put_contents($new_file, base64_decode(str_replace($result[1], ‘‘, $base)))) {
???????????return $path . $name;
???????} else {
???????????return false;
???????}
???}
}
base64图片上传处理方式
原文地址：https://www.cnblogs.com/lvfish/p/9178628.html