thinkphp上传图片并压缩覆盖 data目录在根目录下

public function add_post(){ $upload = new \Think\Upload();// 实例化上传类 $upload->maxSize = 8388608 ;// 设置附件上传大小(字节单位) $upload->exts = array('gif','jpeg','jpg','png');// 设置附件上传类型

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