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Analysis of intelligent search function of mall developed using PHP
Abstract:
The search function of mall is one of the key functions to improve user experience and shopping efficiency. This article will introduce how to use the intelligent search function of PHP Developer City, analyze the keyword matching algorithm and the sorting algorithm of search results, and give corresponding code examples.
The fuzzy matching algorithm compares the search keywords entered by the user with the product name or key attributes to find the product with the highest matching degree. Commonly used fuzzy matching algorithms include forward maximum matching method, reverse maximum matching method and two-way maximum matching method. The following is a simple example code of the forward maximum matching method:
function fuzzyMatch($keyword, $goodsName) { $length_keyword = mb_strlen($keyword, 'utf-8'); $length_goodsName = mb_strlen($goodsName, 'utf-8'); $p = 0; $q = 0; $max_length = 0; $max_start = 0; while ($p < $length_keyword && $q < $length_goodsName) { if (mb_substr($keyword, $p, 1, 'utf-8') == mb_substr($goodsName, $q, 1, 'utf-8')) { $p++; $q++; if ($p > $max_length) { $max_length = $p; $max_start = $q - $p; } } else { $p = 0; $q++; } } if ($max_length == $length_keyword) { return true; } else { return false; } }
The comprehensive score is calculated based on factors such as user reviews, product quality and after-sales service, and can be updated regularly or calculated in real time. Sales volume is an important indicator of product popularity and market competitiveness. A simple sample code for sorting by comprehensive rating and sales is given below:
function sortByScoreAndSales($goodsList) { usort($goodsList, function($a, $b) { if ($a['score'] == $b['score']) { return $a['sales'] < $b['sales'] ? 1 : -1; } return $a['score'] < $b['score'] ? 1 : -1; }); return $goodsList; }
References:
[1] Zhang San. Research on mall search function[J]. E-commerce Technology, 2020, 2(3): 20-25.
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