Js Client php problems

Php on js client is a bit difficult. PHPcodewc (); is it a data insertion UDF echo & quot; & lt; script & gt; if (confirm (is the data parsed by the program correct? Are you sure you want to insert the file to the database? otherwise, cancel this operation and re-edit the excel file .)) {} else {window. history. go (-1) ;}& lt; script & gt; & quot; js Client php is a bit difficult

PHP code

  Wc (); // is a data insertion custom function echo "script" if (confirm ('is the data parsed by the program correct? Are you sure you want to insert the file to the database? otherwise, cancel this operation and re-edit the excel file. ') {} else {window. history. go (-1);} script "; // if confirmed, run the wc () function. if canceled, return to the previous page without the wc () function. Wc (inserted into the database );

How can I modify the statements of my code?
Similar to this

JScript code

  Return confirm ('are you sure you want to submit? /Are you sure? ');

Can I execute

PHP code

  exit

------ Solution --------------------
The correct process is

First, when the client submits the data, a prompt is displayed asking whether to confirm.

Then, submit the form to the server.

The server directly puts data into the database.

------ Solution --------------------
Script
If (confirm ('is the data parsed by the program correct? Are you sure you want to insert the file to the database? please cancel this operation and re-edit the excel file .')){
Window. location = 'WC. php ';
} Else {
Window. history. go (-1 );
}
Script

Run the wc () function in wc. php.
------ Solution --------------------
That's because your form data exceeds the post_max_size limit.