data-method="post" - not working proper on PHP

Bootstraptable version(s) affected: v1.18.3

Description
when using the attribute

data-method="post"

the browser show it as POST

   

but PHP v7.4 replies an empty array

   

Example

<table
				id="table"
				data-toggle="table"
				data-search="true"
				data-method="post"
				data-url="entities/countryHelper.php"
				data-side-pagination="server"				
				data-pagination="true">
				<thead>
					<tr>
						<th data-field="title">ID</th>
						<th data-field="code">Item Name</th>
						<th data-field="flag">Item Price</th>
					</tr>
				</thead>
</table>

[wenzhixin]

To make sure that when our REST API app responds with JSON that clients interpret it as such, we should set Content-Type in the response header to application/json after the request is made.

@UtechtDustin https://stackoverflow.blog/2020/03/02/best-practices-for-rest-api-design/

I think this issue can be closed.

[wenzhixin]

You need to set the contentType option: https://examples.bootstrap-table.com/index.html#options/content-type.html