How to set Sphinx relevance to the beginning of the line?

Question

Sphinx

I make a request and get the result.
Query: brush

• Second glue Super Moment Pro plus with a brush , 5g
  
• Flux for soldering soldering acid with a brush 25ml REXANT
  
• Silicone brush 18.5 cm Function Form Fiskars
  
• Dough brush 22.5 cm KL40A09-08
  
• Brush brush 12mm, c/x 6mm, canil . wire 0,3mm KERN
  
• Brush brush 25mm, c/x 6mm, canil . wire 0,3mm KERN
  
• Baking brush 158x40mm
  

How to sort like this:

• Silicone brush 18.5 cm Function Form Fiskars
  
• Dough brush 22.5 cm KL40A09-08
  
• Baking brush 158x40mm
  
• Brush brush 12mm, c/x 6mm, canil . wire 0,3mm KERN
  
• Brush brush 25mm, c/x 6mm, canil . wire 0,3mm KERN
  
• Flux for soldering soldering acid with a brush 25ml REXANT
  
• Second glue Super Moment Pro plus with a brush , 5g
  

Those. the closer the keyword is to the beginning of the line, the higher the weight.
Thanks in advance!

Answer 1

Key parameter min_hit_pos
More details here
As an option:

$query = 'кисточ';

  try {
    $sp = new PDO('mysql:host=127.0.0.1;port=9306', '', '');
    $list = $sp->query("SELECT * FROM test1 WHERE MATCH('$query') OPTION ranker = expr('sum(4*lcs+100/(min_hit_pos)+bm25)')");
    
    while ( $row = $list->fetch(PDO::FETCH_ASSOC) ) { //Преобразуем результат в ассоциативный массив
      echo $row['id'] . ' - '; //id товара в mysql
      echo $row['weight'] . ' - '; //Релевантный вес
      echo $row['name'] . '<br/>'; //Название товара
    };
    
  } catch( PDOException $e) {
    echo "You have an error: ".$e->getMessage()."<br>";
    echo "On line: ".$e->getLine();
  }

Answer 2

Go in the direction of relevance and query popularity weights, and then sort by this index, how could it be otherwise?

Answer 3

In select, add a separate "Short Title" field, which is built on the fly as the first 2 words of the line (if the second word is "for", then without it). Or not 2 words, but the whole line before the punctuation mark, "for", "with".
And assign a high weight to this field.

Answer 4

Sort separately in the app

Answer 5

In the select, add a separate "Short Title" field