I am getting this warning and the php returns null .
PHP Warning: json_encode(): Invalid UTF-8 sequence in argument in /var/www/rreadyreckoner/get_instruction.php on line 26 {"result":[{"instruction":null}]}
I am trying to run this php script.
<?php
include "demo_config.php";
$con = mysqli_connect($server_name,$mysql_user,$mysql_pass,$dbname);
if(!$con)
{
echo "Connection Error".mysqli_connect_error();
}
else{
//echo "";
}
$query ="SELECT instruction FROM `rreadyreckoner` ORDER BY id DESC LIMIT 1;";
$res = mysqli_query($con,$query);
$result = array();
while($row = mysqli_fetch_array($res))
{
array_push($result,
array('instruction'=>$row[0]));
}
if(!$result)
{
echo "Nothing to display";
}else
{
echo json_encode(array("result"=>$result));
}
mysqli_close($con);
?>
The only change I did was when inserting content into mysql database removed a character that was getting inserted by default and replaced it with nothing.
$instruction =$_POST["instruction"];
$plainHTML = str_replace(chr(194),"",$instruction);
$sql = "INSERT INTO rreadyreckoner (id, instruction)
VALUES (NULL, '$plainHTML')";
Before doing this I was getting a proper response. Any help or suggestion is appreciated. Thank you.
