How to solve sql error " product portfolio has diversified to encompass a highly successful multi-brand' at line 1" - mysql

Question

I am kind of new one for mysql and php. a week ago this code worked perfectly and when now I am trying it shows this error message
Error : You have an error in your SQL syntax; check the manual that
corresponds to your MariaDB server version for the right syntax to use
near 's product portfolio has diversified to encompass a highly
successful multi-brand' at line 1
I search how to solve that after spending a whole day, but couldn't figure it out.
I have tried similar questions here in stackoverflow, Yet I am stucked here.
A help would be really admired
Given below is my code
<?php
if(isset($_POST['upload']))
{ $company_name =$_POST['company_name'];
$service =$_POST['service'];
$email =$_POST['email'];
$password =$_POST['password'];
$details =$_POST['details'];
$fileName = $_FILES['Filename']['name'];
$fileName1 = $_FILES['Filename1']['name'];
$fileName2 = $_FILES['Filename2']['name'];
$fileName3 = $_FILES['Filename3']['name'];
$fileName4 = $_FILES['Filename4']['name'];
$target = "company_images/";
$fileTarget = $target.$fileName;
$fileTarget1 = $target.$fileName1;
$fileTarget2 = $target.$fileName2;
$fileTarget3 = $target.$fileName3;
$fileTarget4 = $target.$fileName4;
$tempFileName = $_FILES["Filename"]["tmp_name"];
$tempFileName1 = $_FILES["Filename1"]["tmp_name"];
$tempFileName2 = $_FILES["Filename2"]["tmp_name"];
$tempFileName3 = $_FILES["Filename3"]["tmp_name"];
$tempFileName4 = $_FILES["Filename4"]["tmp_name"];
$result = move_uploaded_file($tempFileName,$fileTarget);
$result1 = move_uploaded_file($tempFileName1,$fileTarget1);
$result2 = move_uploaded_file($tempFileName2,$fileTarget2);
$result3 = move_uploaded_file($tempFileName3,$fileTarget3);
$result4 = move_uploaded_file($tempFileName4,$fileTarget4);
$file = rand(1000,100000)."-".$_FILES['file']['name'];
$file_loc = $_FILES['file']['tmp_name'];
$file_size = $_FILES['file']['size'];
$file_type = $_FILES['file']['type'];
$folder="pdf_uploads/";
// new file size in KB
$new_size = $file_size/1024;
// new file size in KB
// make file name in lower case
$new_file_name = strtolower($file);
// make file name in lower case
$final_file=str_replace(' ','-',$new_file_name);//anthima
if(move_uploaded_file($file_loc,$folder.$final_file))
{
$query = "INSERT INTO company_details( company_name,service, email, password, details,image_path,file_name,image_path1,file_name1,image_path2,file_name2,image_path3,file_name3,file,type,size,image_path4,file_name4) VALUES ('$company_name','$service','$email','$password','$details','$fileTarget','$fileName','$fileTarget1','$fileName1','$fileTarget2','$fileName2','$fileTarget3','$fileName3','$final_file','$file_type','$new_size','$fileTarget4','$fileName4')";
$con->query($query) or die("Error : ".mysqli_error($con));
mysqli_close($con);
}
}
?>
<?php
Given below is the test data error
VALUES ('singer','Hardware','singer#gmail.com','singer','Singer has been in Sr' at line 1

Answer 1

Because you never sanitize anything and put the data straight into your query,
$company_name =$_POST['company_name'];
$service =$_POST['service'];
$email =$_POST['email'];
$password =$_POST['password'];
$details =$_POST['details'];
...
$query = "INSERT INTO
company_details( company_name,service, email, password, details,image_path,file_name,image_path1,file_name1,image_path2,file_name2,image_path3,file_name3,file,type,size,image_path4,file_name4)
VALUES (
'$company_name','$service','$email','$password','$details','$fileTarget','$fileName','$fileTarget1','$fileName1','$fileTarget2','$fileName2','$fileTarget3','$fileName3','$final_file','$file_type','$new_size','$fileTarget4','$fileName4'
)";
your problem is most likely in the data
's product portfolio has diversified to encompass a highly successful multi-brand
Maybe you have unscaped apostrophes in your data, so you're kinda SQL-injecting yourself. The query ends before the string shown in the error.
The solution is to escape special chars before inserting like in this question: How do I escape only single quotes?
In your case, start with the details
$details = addcslashes($_POST['details'], "'");
or
$details = addslashes($_POST['details']);
But keep adding test scenarios for your code. E.g. what happens if company name gets something like Mc'Donaldson? What is the set of chars you want to accept for each field? Then you will know how to validate those fields and create your functions (or reuse something)