PHP丨实现可判断类型限制大小的原生文件上传，图片上传等

<?php
public function uploads($file){
//判断文件类型和大小
if ((($_FILES[$file]["type"] == "image/gif") || ($_FILES[$file]["type"] == "image/jpeg") ||
($_FILES[$file]["type"] == "image/pjpeg") || ($_FILES[$file]["type"] == "image/png")) &&
($_FILES[$file]["size"] < 2072575)){ //获取文件类型 $filetype = $_FILES[$file]['type']; $preg="/image\/(.*)/"; preg_match_all($preg,$filetype,$filearr); //重命名文件 $filename = "static/uploads/".date('Ymdhis').rand(100,999).'.'.$filearr[1][0]; //上传并重命名 $fileuploads = move_uploaded_file($_FILES[$file]["tmp_name"],$filename); if ($fileuploads) { $data = ['msg'=>200,'val'=>'上传成功','img'=>$filename];
}else{
$data = ['msg'=>404,'val'=>'上传失败'];
}
return json_encode($data);
}
$data = ['msg'=>404,'val'=>'请上传正确的文件格式并且文件不能大于2m'];
return json_encode($data);
}