Questions about importing excel files using PHP-php Tutorial

I used thinkphp framework to import excel files in PHP. when importing excel files, when there is a large amount of data in the excel files, an ajax error will be reported and the speed will be a little slow, this is not the case when there is a small amount of data in excel. for example, if 3000 pieces of data in excel are imported to 500 or 600 pieces, this ajax error will occur.
_ AjaxError: function (data, transport ){
If (data. status = 0 & transport = null)
Alert ("The page is not served from a server! Ajax call failed ");
Else if (typeof console! = "Undefined ")
Console. log ("Ajax error:" + data. status + "" + transport );
},

Reply to discussion (solution)

No answer? sorry.

Change the memory_limit value in php. ini to a greater value.

It's not good to change the memory_limit value in php. ini to a larger value.