php程序在本地工作但不在服务器上

I have this code running locally smoothly. The program only looks for a file and write data on it. When I try to run the same program on a server, it just does nothing...

This is the complete code:

<?php

 $myFile = "Current_User.txt";
 //$produto = "sapato1";
 //$produto = $produto.";";
 $i = 0;
 $produto = $_POST["produtoID"];
 $produto = $produto.";";
 //$produto = $_POST["produtoID"];

    $fh = fopen($myFile, 'r');
    $line_of_text = fgets($fh);
    $str = $line_of_text;
    $str = str_replace("
", "", $str);
    $str = $str."_Cesto.txt";
    fclose($fh);

        $fh2 = fopen($str, "r")or die("can't open file");
                while (($line_of_text = fgets($fh2))) {
                        $i++;
                        $line_of_text = str_replace("
", "", $line_of_text);
                        $line_of_text = str_replace("", "", $line_of_text);
                        if($produto == $line_of_text){
                            break;
                            }
                }
            fclose($fh2);


            $dados = file($str);
            if($i == 1){
                unset($dados[$i - 1]);
            }
            else{
                unset($dados[$i - 2]);
            }
            file_put_contents($str,$dados);         


  ?>

you forgot to upload Current_User.txt

Did you check the write permission of your Current_User.txt file? What File System are you using on your Server?

If you have access: Check your PHP error_log on the Server to get more valueable answers, or change the error_reportings.

Following code is facing the same problem so permissions could be the reason or elsewise change the method to GET it will be working.

 <?php 

    $url =  "http://sea-summit.com/T_webservice/get_appointments_by_id.php";


    $data = array('user_id'=> 1);


    $options = array(
      'http' => array(
        'method'  => 'POST',
        'content' => json_encode( $data ),
        'header'=>  "Content-Type: application/json
" . "Accept: application/json
" ));

    $context  = stream_context_create( $options );
    $result = file_get_contents( $url, false, $context );
    $response = json_decode( $result );



    var_dump($response);

    ?>