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Addition of an ordinal number in the Laravel Model

I am beginner webdeveloper, I use in my project Laravel 7 and maatwebsite/excel I have this code: This code generates an Excel document. It works fine. I would like to add a sequence number in 1 column (1,2,3 etc). How can I do this? My model: Please help Answer try this basically u need to add sn to heading …

How to limit length of post data

This is my current code i am using to saveguard user post through form If main_data is a correct data which is less than 500kb (i did with 400kb), the speed at which it uploads is super fast, but i noticed that if i paste a very large texts in the form, it takes longer before it shows error text.

What is the meaning of the asterisk before an array key name in print_r

When using print_r($myArray, true) for one of my arrays I get: What is the meaning of the asterisk in [*createdAt] and [*updatedAt]? Also, I cannot access these fields. How can I access them? Answer The asterisk indicates an Object. And it is protected. This is the reason why you can’t access them.

Join two associative array based on key using PHP

I have two arrays here: I want to join them, kind of left join in mysql so the result will be like this The address will be merged to $array1 based on the id. Is this possible using PHP? Please help. Thanks. Answer You can simplify this problem by using array_column to re-index $array2 by the id values; then …