php-text-analysis

PHP Text Analysis is a library for performing Information Retrieval (IR) and Natural Language Processing (NLP) tasks using the PHP language. All the documentation for this project can be found in the wiki.

Installation Instructions

Add PHP Text Analysis to your project

composer require yooper/php-text-analysis

Documentation for the library resides in the wiki. https://github.com/yooper/php-text-analysis/wiki

Dictionary Installation

Not required unless you use the dictionary stemmers

For Ubuntu < 16

sudo apt-get install libpspell-dev 
sudo apt-get install php5-pspell
sudo apt-get install aspell-en
sudo apt-get install php5-enchant

For Ubuntu >= 16

sudo apt-get install libpspell-dev php7.0-pspell aspell-en php7.0-enchant

For Centos

sudo yum install php5-pspell
sudo yum install aspell-en
sudo yum install php5-enchant

PHP Pecl Stem is not currently available in php 7.0.

Tokenize

There are several tokenizers available

• FixedLengthTokenizer
• GeneralTokenizer
• LambdaTokenizer
• PennTreeBankTokenizer
• RegexTokenizer
• SentenceTokenizer
• WhitespaceTokenizer

Tokenizer Usage

$tokenizer = new GeneralTokenizer()
$tokens = $tokenizer->tokenize("Enter your text here");

Frequency Distribution

$tokenizer = new \TextAnalysis\Tokenizers\GeneralTokenizer();
$tokens = $tokenizer->tokenize("time flies like an arrow and an arrow flies like time");
$freqDist = new \TextAnalysis\Analysis\FreqDist($tokens);
$freqDist->getHapaxes(); //Get the Hapaxes
$freqDist->getTotalTokens();
$freqDist->getTotalUniqueTokens();

Check out the API for full documentation https://github.com/yooper/php-text-analysis/blob/master/src/Analysis/FreqDist.php