php semantic search

PHP语义搜索课程

该类包含用于语义搜索的接口，并使用ropherta作为嵌入式和sqlite3向量搜索作为矢量数据库。还提供了使用SQLITE3 FTS4和BM25的关键字搜索。

为了填充矢量数据库， Ingester类包含一个类似于Langchain中可用的递归块，但具有一些速度，并能够将其引用到源文档中的偏移。

更高级的用途包括使用向量搜索作为Reranker和使用Hyde获得对称嵌入。

可以下载来自Stackoverflow和PHP文档的35,000个文档的演示源文档和索引。

摄取的文档格式

摄入组件采用JSONL格式的文档，每行有一个良好的JSON文档。

该文本应为纯文本UTF-8编码（PER JSON SPEC）。该系统将在摄入时将其分成部分。

 { "url": "...", "title": "...", "text": "...", "section": "...", "license": "..." }

矢量指数下降

您需要安装sqlite-vss（vector0和vss0.so）

php.ini

放

 [sqlite3]
; Directory pointing to SQLite3 extensions
; https://php.net/sqlite3.extension-dir
sqlite3.extension_dir = /path/to/the/sqlite3-vss-dlls

SQLITE3-VSS依赖项

apt install libgomp1 libblas3 liblapack3

ropherta依赖性

安装ONNX框架：

 composer exec -- php -r "require 'vendor/autoload.php'; OnnxRuntimeVendor::check();"

如果您想使用多语言模型，请不要下载此模型，并按照下一节中的说明进行操作。对于英语模型，下载句子Roberta ONNX模型（这需要一段时间，该模型的大小为362MB）：

 composer exec -- php -r "require 'vendor/autoload.php'; TextualizationSentenceTransphormersVendor::check();"

多语言模型

下载句子库：

 composer exec -- php -r "require 'vendor/autoload.php'; TextualizationSentencePieceVendor::check();"

下载XLM Tokenizer句子BPE模型：

 composer exec -- php -r "require 'vendor/autoload.php'; TextualizationRophertaTokenizerVendor::check();"

下载多语言 - E5-small型号（尺寸为471MB）：

 composer exec -- php -r "require 'vendor/autoload.php'; TextualizationSentenceTransphormersVendor::check(true);"

请注意：如果您已经下载了英文型号，则需要先删除它。目前只有一个模型，将在以后的版本中取消此限制。

例子

根据上述说明安装SQLite3扩展名和Ropherta。

从http://textualization.com/download/phpsemsearch_0.1.1.tar.bz2（192MB）下载数据和索引。

解压缩并将文件vector.db和keyword.db移至根文件夹。

关键字搜索

顶级文档似乎很贴切。

$ composer run-script query keyword " composer produce time-out on script execution " 
> Composer C onfig::disableProcessTimeout
> @php scripts/query.php ' keyword ' ' composer produce time-out on script execution '
Search query: compos OR produc OR time OR out OR on OR script OR execut
0. SearchResult[16.874319996013,https://www.php.net/manual/en/function.set-time-limit.php 0, ' function set-time-limit ' ]
1. SearchResult[16.699065789091,https://stackoverflow.com/q/365496 0, ' How to keep a php script from timing out because of a long mysql query ' ]
2. SearchResult[15.984700996733,https://stackoverflow.com/q/2439087 0, ' How can I set time limit on get_file_contents in PHP? ' ]
3. SearchResult[15.288043063863,https://stackoverflow.com/q/2443491 0, ' What is considered a long execution time? ' ]
4. SearchResult[14.946966486107,https://stackoverflow.com/q/2690504 0, ' PHP: producing relative date/time from timestamps ' ]
5. SearchResult[14.820039567114,https://stackoverflow.com/q/13955436 0, ' Resume PHP to execution script after exception ' ]
6. SearchResult[14.410651129421,https://stackoverflow.com/q/14040241 0, ' Is there any way I can execute a PHP script from MySQL? ' ]
7. SearchResult[14.406441765697,https://stackoverflow.com/q/3110235 0, ' php garbage collection while script running ' ]
8. SearchResult[14.175007211438,https://stackoverflow.com/q/4765107 0, ' Can you figure out this PHP timing issue? ' ]
9. SearchResult[13.918155042184,https://www.php.net/manual/en/function.time-sleep-until.php 0, ' function time-sleep-until ' ]
10. SearchResult[13.677310963332,https://stackoverflow.com/q/2202355 0, ' Set maximum execution time for exec() specifically ' ]
11. SearchResult[13.537783397747,https://stackoverflow.com/q/1194857 0, ' How to schedule the execution of a PHP script on the server side? ' ]
12. SearchResult[13.527986155755,https://stackoverflow.com/q/2128619 0, ' Run Java class file from PHP script on a website ' ]
13. SearchResult[13.371804613541,https://stackoverflow.com/q/11786734 0, ' PHP readfile() and large files ' ]
14. SearchResult[13.354790819156,https://stackoverflow.com/q/5947345 0, ' PHP backup script timing out ' ]
15. SearchResult[13.336357456153,https://stackoverflow.com/q/22817670 0, ' PHP: maximum execution time when importing .SQL data file ' ]
16. SearchResult[13.238850536268,https://stackoverflow.com/q/4501876 0, ' How to get the execution time of a MySQL query from PHP? ' ]
17. SearchResult[13.181655818318,https://stackoverflow.com/q/145402 0, ' Can you recommend Performance Analysis tools for PHP? ' ]
18. SearchResult[13.143897483182,https://stackoverflow.com/q/20907382 0, ' PHP timeout running MSSQL SP ' ]
19. SearchResult[13.044314476608,https://stackoverflow.com/q/5317315 0, ' executing a Powershell script from php ' ]
20. SearchResult[12.948364731457,https://www.php.net/manual/en/function.register-shutdown-function.php 0, ' function register-shutdown-function ' ]
21. SearchResult[12.948078367259,https://stackoverflow.com/q/437716 0, ' High-quality PDF to Word conversion in PHP? ' ]
22. SearchResult[12.923362029257,https://stackoverflow.com/q/16699549 0, ' What happens if you edit a php script while an instance of it is running? ' ]
23. SearchResult[12.914359255007,https://stackoverflow.com/q/9468332 0, ' How can I find out which PHP script a process is running in Linux? ' ]
24. SearchResult[12.897400839699,https://stackoverflow.com/q/6263443 0, ' PDO Connection Test ' ]
25. SearchResult[12.860367898878,https://stackoverflow.com/q/60232298 0, ' In PHP: what is the difference between "return", "yield", "yield from" and mixing both yield and return in same function? ' ]
26. SearchResult[12.813708107511,https://stackoverflow.com/q/9562124 0, ' PHP MySQL set Connection Timeout ' ]
27. SearchResult[12.763582642154,https://stackoverflow.com/q/5638484 0, ' How can I set the maximum execution time for a PHP script? ' ]
28. SearchResult[12.564669201144,https://stackoverflow.com/q/7036767 0, ' How can I get infinite maximum execution time with PHP? ' ]
29. SearchResult[12.552748367252,https://stackoverflow.com/q/8562398 0, ' Get max_execution_time in PHP script ' ]
30. SearchResult[12.457255454068,https://stackoverflow.com/q/4869611 0, ' Fatal error: Maximum execution time of 0 seconds exceeded ' ]
31. SearchResult[12.376381360159,https://stackoverflow.com/q/15776400 0, ' make script execution to unlimited ' ]
32. SearchResult[12.369739483738,https://www.php.net/manual/en/features.commandline.usage.php 0, ' features commandline usage ' ]
33. SearchResult[12.301485848315,https://stackoverflow.com/q/13751772 0, ' PHP output buffer not flushing ' ]
34. SearchResult[12.287292912835,https://www.php.net/manual/en/luasandbox.pauseusagetimer.php 0, ' luasandbox pauseusagetimer ' ]
35. SearchResult[12.274118332228,https://stackoverflow.com/q/16933606 0, ' error_reporting(E_ALL) does not produce an error ' ]
36. SearchResult[12.216750396196,https://stackoverflow.com/q/13352388 0, ' Running php script as cron job - timeout issues? ' ]
37. SearchResult[12.20860917016,https://stackoverflow.com/q/7680572 0, ' Fatal error: Maximum execution time of 300 seconds exceeded ' ]
38. SearchResult[12.174936958789,https://www.php.net/manual/en/features.file-upload.common-pitfalls.php 0, ' features file-upload common-pitfalls ' ]
39. SearchResult[12.159400224308,https://stackoverflow.com/q/9087883 0, ' Reading a Git commit message from PHP ' ]
40. SearchResult[12.098897569281,https://stackoverflow.com/q/740954 0, ' Does sleep time count for execution time limit? ' ]
41. SearchResult[11.979302316362,https://stackoverflow.com/q/20471736 0, ' Gateway Time-out:The gateway did not receive a timely response from the upstream server ' ]
42. SearchResult[11.910314436649,https://stackoverflow.com/q/535020 0, ' Tracking the script execution time in PHP ' ]
43. SearchResult[11.907291503573,https://stackoverflow.com/q/6853057 0, ' Best way to periodically execute a PHP script? ' ]
44. SearchResult[11.825435975279,https://stackoverflow.com/q/17014531 0, ' PHP: Calling MySQL Stored Procedure with Both INPUT AND OUTPUT Parameters (NOT "INOUT") ' ]
45. SearchResult[11.812067390316,https://www.php.net/manual/en/function.getlastmod.php 0, ' function getlastmod ' ]
46. SearchResult[11.758600404801,https://stackoverflow.com/q/4717167 0, ' How to keep a persistent PHP script running? ' ]
47. SearchResult[11.728801536779,https://stackoverflow.com/q/845021 0, ' How can I get useful error messages in PHP? ' ]
48. SearchResult[11.647137530513,https://stackoverflow.com/q/6965541 0, ' Running PHP code/scripts on the command line ' ]
49. SearchResult[11.603155219238,https://stackoverflow.com/q/35681947 0, ' How to get PHP max_execution_time from the command line? ' ]

向量搜索

不如关键字好，但结果确实不同。当搜索类似文档而不是针对文档查询时，使用对称嵌入器（例如Roberta）使用对称嵌入器（例如Roberta）进行矢量搜索更好。对于这种情况，海德（下面介绍）更好。替代性，不对称嵌入式（如讲师）可以通过ONNX移植到PHP。

$ composer run-script query vector " How to stop composer giving a time-out on a script execution " 
> Composer C onfig::disableProcessTimeout
> @php scripts/query.php ' vector ' ' How to stop composer giving a time-out on a script execution '
0. SearchResult[-0.51090812683105,https://www.php.net/manual/en/function.oci-bind-by-name.php 14, ' function oci-bind-by-name ' ]
1. SearchResult[-0.5215368270874,https://www.php.net/manual/en/parle.examples.parser.php 5, ' parle examples parser ' ]
2. SearchResult[-0.52460688352585,https://www.php.net/manual/en/mysqli-result.fetch-fields.php 4, ' mysqli-result fetch-fields ' ]
3. SearchResult[-0.54987502098083,https://www.php.net/manual/en/function.stream-filter-register.php 3, ' function stream-filter-register ' ]
4. SearchResult[-0.55469918251038,https://stackoverflow.com/q/56757578 3, ' Composer fails with kylekatarnls/update-helper on new homestead ' ]
5. SearchResult[-0.5561431646347,https://www.php.net/manual/en/function.oci-get-implicit-resultset.php 7, ' function oci-get-implicit-resultset ' ]
6. SearchResult[-0.55869328975677,https://www.php.net/manual/en/function.eio-event-loop.php 1, ' function eio-event-loop ' ]
7. SearchResult[-0.56037712097168,https://www.php.net/manual/en/function.sem-acquire.php 1, ' function sem-acquire ' ]
8. SearchResult[-0.56422245502472,https://www.php.net/manual/en/function.imagegetclip.php 1, ' function imagegetclip ' ]
9. SearchResult[-0.56469792127609,https://www.php.net/manual/en/function.ps-begin-pattern.php 1, ' function ps-begin-pattern ' ]
10. SearchResult[-0.56800973415375,https://www.php.net/manual/en/book.com.php 2, ' book com ' ]
11. SearchResult[-0.57436245679855,https://www.php.net/manual/en/function.stripos.php 3, ' function stripos ' ]
12. SearchResult[-0.57600331306458,https://www.php.net/manual/en/function.oci-get-implicit-resultset.php 4, ' function oci-get-implicit-resultset ' ]
13. SearchResult[-0.57834851741791,https://stackoverflow.com/q/8251426 0, ' Insert string at specified position ' ]
14. SearchResult[-0.57876354455948,https://www.php.net/manual/en/ref.sodium.php 6, ' ref sodium ' ]
15. SearchResult[-0.58007609844208,https://www.php.net/manual/en/cubrid.examples.php 4, ' cubrid examples ' ]
16. SearchResult[-0.58233147859573,https://www.php.net/manual/en/function.apache-setenv.php 1, ' function apache-setenv ' ]
17. SearchResult[-0.58316200971603,https://stackoverflow.com/q/4788500 0, ' how to monitor the CPU usage of a PHP script ' ]
18. SearchResult[-0.58451473712921,https://www.php.net/manual/en/function.mb-ereg-match.php 1, ' function mb-ereg-match ' ]
19. SearchResult[-0.5861394405365,https://stackoverflow.com/q/17060177 0, ' Yii2 dropdown empty option ' ]
20. SearchResult[-0.58631610870361,https://stackoverflow.com/q/40067212 0, ' How to return custom error message from controller method validation ' ]
21. SearchResult[-0.5878199338913,https://www.php.net/manual/en/splfileobject.ftruncate.php 1, ' splfileobject ftruncate ' ]
22. SearchResult[-0.58884918689728,https://www.php.net/manual/en/function.checkdnsrr.php 1, ' function checkdnsrr ' ]
23. SearchResult[-0.59443593025208,https://stackoverflow.com/q/4752389 0, ' PHP readfile() of external URL ' ]
24. SearchResult[-0.59458327293396,https://www.php.net/manual/en/function.ibase-name-result.php 1, ' function ibase-name-result ' ]
25. SearchResult[-0.59462285041809,https://www.php.net/manual/en/ziparchive.registerprogresscallback.php 1, ' ziparchive registerprogresscallback ' ]
26. SearchResult[-0.59584921598434,https://www.php.net/manual/en/event.examples.php 13, ' event examples ' ]
27. SearchResult[-0.59764385223389,https://www.php.net/manual/en/mysqli-stmt.sqlstate.php 3, ' mysqli-stmt sqlstate ' ]
28. SearchResult[-0.59767037630081,https://www.php.net/manual/en/function.ldap-mod_del-ext.php 1, ' function ldap-mod_del-ext ' ]
29. SearchResult[-0.59767037630081,https://www.php.net/manual/en/function.ldap-mod_replace-ext.php 1, ' function ldap-mod_replace-ext ' ]
30. SearchResult[-0.59767037630081,https://www.php.net/manual/en/function.ldap-mod_add-ext.php 1, ' function ldap-mod_add-ext ' ]
31. SearchResult[-0.59810423851013,https://www.php.net/manual/en/reflectionparameter.isarray.php 1, ' reflectionparameter isarray ' ]
32. SearchResult[-0.59845781326294,https://www.php.net/manual/en/function.mb-ereg-search.php 1, ' function mb-ereg-search ' ]
33. SearchResult[-0.60006403923035,https://www.php.net/manual/en/event.examples.php 23, ' event examples ' ]
34. SearchResult[-0.60347318649292,https://www.php.net/manual/en/function.lchgrp.php 1, ' function lchgrp ' ]
35. SearchResult[-0.60569077730179,https://www.php.net/manual/en/function.rpminfo.php 1, ' function rpminfo ' ]
36. SearchResult[-0.60587275028229,https://www.php.net/manual/en/function.eio-fstatvfs.php 1, ' function eio-fstatvfs ' ]
37. SearchResult[-0.60857331752777,https://www.php.net/manual/en/function.ps-begin-template.php 3, ' function ps-begin-template ' ]
38. SearchResult[-0.60899668931961,https://www.php.net/manual/en/class.random-randomerror.php 1, ' class random-randomerror ' ]
39. SearchResult[-0.60899668931961,https://www.php.net/manual/en/class.badfunctioncallexception.php 1, ' class badfunctioncallexception ' ]
40. SearchResult[-0.60899668931961,https://www.php.net/manual/en/class.mongodb-driver-exception-unexpectedvalueexception.php 1, ' class mongodb-driver-exception-unexpectedvalueexception ' ]
41. SearchResult[-0.60899668931961,https://www.php.net/manual/en/class.mongodb-driver-exception-invalidargumentexception.php 1, ' class mongodb-driver-exception-invalidargumentexception ' ]
42. SearchResult[-0.60899668931961,https://www.php.net/manual/en/class.outofrangeexception.php 1, ' class outofrangeexception ' ]
43. SearchResult[-0.60899668931961,https://www.php.net/manual/en/class.badmethodcallexception.php 1, ' class badmethodcallexception ' ]
44. SearchResult[-0.6105665564537,https://www.php.net/manual/en/function.snmpget.php 1, ' function snmpget ' ]
45. SearchResult[-0.61080187559128,https://stackoverflow.com/q/12496669 0, ' Code reformatting on save in PhpStorm or other jetbrains ide ' ]
46. SearchResult[-0.61326277256012,https://www.php.net/manual/en/class.dateinterval.php 3, ' class dateinterval ' ]
47. SearchResult[-0.61386811733246,https://www.php.net/manual/en/reflectionparameter.getclass.php 1, ' reflectionparameter getclass ' ]
48. SearchResult[-0.6145703792572,https://www.php.net/manual/en/function.ldap-bind.php 2, ' function ldap-bind ' ]
49. SearchResult[-0.61479258537292,https://stackoverflow.com/q/10520390 0, ' Stop script execution upon notice/warning ' ]

重读

结合关键字和向量。应该更精确。

$ composer run-script query reranked " How to stop composer giving a time-out on a script execution " 
> Composer C onfig::disableProcessTimeout
> @php scripts/query.php ' reranked ' ' How to stop composer giving a time-out on a script execution '
Search query: how OR to OR stop OR compos OR give OR a OR time OR out OR on OR script OR execut
0. SearchResult[-0.61479258537292,https://stackoverflow.com/q/10520390 0, ' Stop script execution upon notice/warning ' ]

海德

使用此功能需要OpenAI API密钥。它可以通过文件，环境变量或直接在构造函数中传递。请注意，致电Openai非常慢。在此示例中，ChatGPT文本将矢量搜索投入了一些不一定理想的方向。较短的文本可能会更好。

$ composer run-script query ' {"class": "\Textualization\SemanticSearch\VectorHydeIndex", "completion":{"open_ai_key":"/path/to/key"}} ' " How to stop composer giving a time-out on a script execution " 
> Composer C onfig::disableProcessTimeout
> @php scripts/query.php ' {"class": "\Textualization\SemanticSearch\VectorHydeIndex", "completion":{"open_ai_key":"/path/to/key"}} ' ' How to stop composer giving a time-out on a script execution '
Hdydrated query: There are several ways to prevent Composer from timing out during script execution:

1. Increase the timeout limit: By default, Composer has a timeout limit of 300 seconds (5 minutes). You can increase this limit by modifying the ` max_execution_time ` directive in your PHP configuration file (php.ini). Set it to a higher value, such as 600 (10 minutes) or more, depending on your script ' s requirements.

2. Optimize your script: If your script is taking too long to execute, consider optimizing it to reduce the execution time. Analyze your code and identify any bottlenecks or areas that can be improved. Use efficient algorithms, avoid unnecessary loops or recursive calls, and optimize database queries if applicable.

3. Split your script into smaller tasks: If your script performs multiple tasks, consider breaking it down into smaller tasks and executing them separately. This way, you can avoid hitting the timeout limit by completing each task within the allowed time frame.

4. Use command-line execution: Instead of running the script through a web server, you can execute it via the command line. Command-line execution typically has a longer timeout limit compared to web server execution. You can run the script using the `php` command followed by the script ' s file path.

5. Increase memory limit: If your script requires more memory to execute, you can increase the memory limit in your PHP configuration file (php.ini). Modify the ` memory_limit ` directive and set it to a higher value, such as 256M or more, depending on your script ' s memory requirements.

6. Use caching: If your script performs repetitive or resource-intensive tasks, consider implementing caching mechanisms. Caching can help reduce the execution time by storing and retrieving precomputed or frequently accessed data instead of recalculating it every time.

7. Use asynchronous processing: If your script involves time-consuming operations, consider using asynchronous processing techniques. Instead of waiting for each operation to complete before moving to the next, you can execute them concurrently or in the background using tools like queues, workers, or event-driven architectures.

Remember to restart your web server or PHP service after making changes to the PHP configuration file for the changes to take effect.
0. SearchResult[-0.42923119664192,https://stackoverflow.com/q/8707339 4, ' Sharing variables between child processes in PHP ? ' ]
1. SearchResult[-0.51769161224365,https://stackoverflow.com/q/3610453 0, ' What is the best way to handle this: large download via PHP + slow connection from client = script timeout before file is completely downloaded ' ]
2. SearchResult[-0.52345854043961,https://stackoverflow.com/q/2148114 0, ' Why use output buffering in PHP ? ' ]
3. SearchResult[-0.54594403505325,https://stackoverflow.com/q/3549243 0, ' Is it worth trying to write tests for the most tightly coupled site in the world ? ' ]
4. SearchResult[-0.58520174026489,https://stackoverflow.com/q/1190662 0, ' Cache Object in PHP without using serialize ' ]
5. SearchResult[-0.58755302429199,https://stackoverflow.com/q/12240905 0, ' Converting a socket resource into a stream socket ' ]
6. SearchResult[-0.60971873998642,https://stackoverflow.com/q/37502754 1, ' How to avoid repeating business logic between client and server ? ' ]
7. SearchResult[-0.6144272685051,https://stackoverflow.com/q/1883079 0, ' Best practice: Import mySQL file in PHP ; split queries ' ]
8. SearchResult[-0.61762964725494,https://stackoverflow.com/q/22845321 0, ' PHP factor 30 performance difference from Linux to Windows ' ]
9. SearchResult[-0.62308472394943,https://stackoverflow.com/q/29975850 0, ' ' Delete ' user but keep records (foreign keys) ' ]
10. SearchResult[-0.6261510848999,https://stackoverflow.com/q/20637944 0, ' How to call a PHP file from HTML or Javascript ' ]
11. SearchResult[-0.62625396251678,https://stackoverflow.com/q/30047169 0, ' phpMyAdmin Error: The mbstring extension is missing. Please check your PHP configuration ' ]
12. SearchResult[-0.63254022598267,https://stackoverflow.com/q/24997988 0, ' Laravel or Phalcon for a heavy-traffic site ' ]
13. SearchResult[-0.63324421644211,https://www.php.net/manual/en/pdo.prepared-statements.php 0, ' pdo prepared-statements ' ]
14. SearchResult[-0.63616043329239,https://www.php.net/manual/en/security.general.php 0, ' security general ' ]
15. SearchResult[-0.63763689994812,https://www.php.net/manual/en/opcache.configuration.php 14, ' opcache configuration ' ]
16. SearchResult[-0.6404709815979,https://stackoverflow.com/q/8607308 0, ' Testing Legacy PHP Spaghetti Code ? ' ]
17. SearchResult[-0.64080655574799,https://stackoverflow.com/q/23595036 0, ' MVC (Laravel) where to add logic ' ]
18. SearchResult[-0.64219701290131,https://stackoverflow.com/q/1642517 0, ' Combined HTML, PHP and Javascript indenting and syntax highlighting in vim ' ]
19. SearchResult[-0.64234572649002,https://stackoverflow.com/q/10992857 0, ' Composition vs Inheritance. What should I use for my database interaction library ? ' ]
20. SearchResult[-0.64483368396759,https://stackoverflow.com/q/12233406 1, ' Preventing session hijacking ' ]
21. SearchResult[-0.6483439207077,https://stackoverflow.com/q/11930208 0, ' How to keep extending session life when user is active ? ' ]
22. SearchResult[-0.64999687671661,https://stackoverflow.com/q/10252476 1, ' Apache Won ' t Request My SSL Client Certificate ' ]
23. SearchResult[-0.65274918079376,https://stackoverflow.com/q/8866738 0, ' Speed of PHP vs JavaScript? ' ]
24. SearchResult[-0.65286993980408,https://stackoverflow.com/q/16603365 6, ' PDO DELETE unexpectedly slow when working with millions of rows ' ]
25. SearchResult[-0.65296018123627,https://stackoverflow.com/q/540339 0, ' How to check if directory contents has changed with PHP? ' ]
26. SearchResult[-0.6578665971756,https://stackoverflow.com/q/16826582 0, ' How do I architect my classes for easier unit testing? ' ]
27. SearchResult[-0.66181313991547,https://stackoverflow.com/q/8707339 5, ' Sharing variables between child processes in PHP? ' ]
28. SearchResult[-0.66558104753494,https://stackoverflow.com/q/10385582 0, ' session_start seems to be very slow (but only sometimes) ' ]
29. SearchResult[-0.66711056232452,https://stackoverflow.com/q/349924 0, ' Is the LAMP stack appropriate for Enterprise use? ' ]
30. SearchResult[-0.66831797361374,https://stackoverflow.com/q/975929 0, ' Firefox error ' no element found ' ' ]
31. SearchResult[-0.67009365558624,https://stackoverflow.com/q/19249159 1, ' Best practice multi language website ' ]
32. SearchResult[-0.67072737216949,https://stackoverflow.com/q/15967157 0, ' MATLAB executable is too slow ' ]
33. SearchResult[-0.67285722494125,https://stackoverflow.com/q/30235551 0, ' Laravel query builder - re-use query with amended where statement ' ]
34. SearchResult[-0.67627030611038,https://stackoverflow.com/q/10829566 0, ' Phing and Composer, which way around? ' ]
35. SearchResult[-0.67773687839508,https://stackoverflow.com/q/62043037 2, ' Elasticsearch - Want to sort by field in all indices where that particular field available or not if not then avoid it ' ]
36. SearchResult[-0.67950439453125,https://stackoverflow.com/q/15473019 0, ' Vulnerabilities of PHP ' s (deprecated) mysql module vs. MySQLi & PDOs ' ]
37. SearchResult[-0.6814968585968,https://www.php.net/manual/en/features.gc.refcounting-basics.php 6, ' features gc refcounting-basics ' ]
38. SearchResult[-0.68179941177368,https://stackoverflow.com/q/2077576 2, ' PHP & mySQL: When exactly to use htmlentities ? ' ]
39. SearchResult[-0.68195909261703,https://www.php.net/manual/en/pdo.transactions.php 0, ' pdo transactions ' ]
40. SearchResult[-0.68209862709045,https://stackoverflow.com/q/48927866 19, ' How to use phpseclib to verify that a certificate is signed by a public CA ? ' ]
41. SearchResult[-0.68375432491302,https://stackoverflow.com/q/12102195 0, ' How to query sql with active record for dates between specified times ' ]
42. SearchResult[-0.68424761295319,https://stackoverflow.com/q/1746207 0, ' How to IPC between PHP clients and a C Daemon Server ? ' ]
43. SearchResult[-0.68476867675781,https://stackoverflow.com/q/1088987 0, ' AJAXify site ' ]
44. SearchResult[-0.68500161170959,https://www.php.net/manual/en/security.errors.php 2, ' security errors ' ]
45. SearchResult[-0.69128942489624,https://stackoverflow.com/q/1849803 0, ' Are Prepared Statements a waste for normal queries ? (PHP) ' ]
46. SearchResult[-0.69598364830017,https://www.php.net/manual/en/philosophy.parallel.php 0, ' philosophy parallel ' ]
47. SearchResult[-0.6972119808197,https://stackoverflow.com/q/12060865 0, ' openssl_pkey_new() throwing errors -- Proper openssl.cnf setup for php ' ]
48. SearchResult[-0.69859385490417,https://stackoverflow.com/q/2022248 0, ' PHP Web Application: mysql database design best practices question ' ]
49. SearchResult[-0.69992303848267,https://stackoverflow.com/q/19249159 0, ' Best practice multi language website ' ]

获取文件

给定一个URL和块数字，获取脚本可以解决：

$ composer run-script fetch vector https://stackoverflow.com/q/2077576 2
> @php scripts/fetch.php ' vector ' ' https://stackoverflow.com/q/2077576 ' ' 2 '
URL: https://stackoverflow.com/q/2077576
Chunk: 2
Title: PHP & mySQL: When exactly to use htmlentities ?
Offset-start: 2169
Offset-end: 3238
Section: StackOverlow
License: CC-BY-SA-3.0
Text:
 <p>I thought it might help to add some more specific details of a specific situation here. Consider that there is a 'Preview' page. Now when I submit the input from a textarea, the Preview page receives the input and shows it html and at the same time, a hidden input collects this input. When the submit button on the Preview button is hit, then the data from the hidden input is POST'ed to a new page and that page inserts the data contained in the hidden input, into the DB. If I do not apply htmlentities when the form is initially submitted (but apply only strip_tags and mysql_real_escape_string) and there's a malicious input in the textarea, the hidden input is broken and the last few characters of the hidden input visibly seen as  <code>" /&gt;</code> on the page, which is undesirable. So keeping this in mind, I need to do something to preserve the integrity of the hidden input properly on the Preview page and yet collect the data in the hidden input so that it does not break it. How do I go about this? Apologize for the delay in posting this info.</p>

请注意，关键字索引未封锁（所有块号为0）。

索引文件

这些文档以本文档顶部描述的格式提供作为JSONL文件。

可以下载示例文件。

$ composer run-script index keyword sophp.jsonl

$ composer run-script index vector sophp.jsonl

要使用重读索引，请单独创建向量和关键字索引。

矢量索引大约需要一天，目前消耗了大量的RAM。

块文件

递归块可以独立使用：

$ composer run-script chunk ropherta null 1024 tests/sornd1000.jsonl output.jsonl

输出JSONL文档具有密钥：

• 标题（ title ）
• 文字（ text ）
• URL（ url ）
• 块号（ chunk_num ）
• 偏移开始（ offset_start ）
• 偏移端（ offset_end ）
• 许可证（ license ）

其他标记器是可能的，请参见scripts文件夹中的代码。使用字符串null （null）将大小设置为字符而不是令牌。

使用自定义ONNX模型的计算嵌入

$ composer run-script embed /path/to/model.onnx " actual text to compute embeddings " 

HYDE评级文件

使用完成服务（例如打开AI ChatGpt）来扩展答案：使用：

$ composer run-script hydrate /path/to/open-ai-key 1024 tests/sornd1000.jsonl output.jsonl

它从JSON对象中的title中填充了字段completion 。

赞助商

我们感谢我们的赞助商：