检查是否使用PHP将特定的文件输入与表单一起提交

Question

I have a form with some dynamic file inputs. the name of the input files are set using a counter.

$("#addCompanionBtn").click(function(){
    counter++;
    var CompanionFields = '<input class="form-control" name="com_photo_'+counter+'" type="file" />';
    $('#companionsDiv').after(CompanionFields);
});

I am using PHP to process the form. How am i supposed to check if a file is submitted with the form or not!!? Since the up to 10 files can be uploaded with the form, it is not a rational approach to check files as bellow:

if(isset($_FILES['com_photo_1']) or isset($_FILES['com_photo_2'])){...}

Any idea is appreciated!

Answer 1

JQuery

$("#addCompanionBtn").click(function(){
    var CompanionFields = '<input class="form-control" name="com_photo[]" type="file" />';
    $('#companionsDiv').after(CompanionFields);
});

PHP

if(isset($_FILES['com_photo'])){
    foreach($_FILES['com_photo'] as $photo){
        //Do Stuff here
    }
}