stanford-nlp-tagger

A PHP wrapper for the Stanford Natural Language Processing library. Supports POSTagger and CRFClassifier. Loads automatically the right packages and detects the language of the given text.

Requirements

• You have to install Java in version 1.8+ or higher.
• Download the right packages and extract them into the directory. (The script loads automatically the right packages, no matter where they are.)

Installation with Composer

$ composer require patrickschur/stanford-nlp-tagger

Example

• Download the required packages for the POSTagger here for English only or here for Arabic, Chinese, French, Spanish, and German.
• Extract the (.zip) package into your directory. (Please do not rename the packages, only if you want to add this packages manually.)

$pos = new \StanfordTagger\POSTagger();

$pos->tag('My dog also likes eating sausage.');

Results in

My_PRP$ dog_NN also_RB likes_VBZ eating_JJ sausage_NN ._.

setOutputFormat()

There are three ways of output formats (xml, slashTags and tsv)

$pos = new \StanfordTagger\POSTagger();

$pos->setOutputFormat(StanfordTagger::OUTPUT_FORMAT_XML);

$pos->tag('My dog also likes eating sausage.');

Result as XML:

<?xml version="1.0" encoding="UTF-8"?>
<pos>
<sentence id="0">
  <word wid="0" pos="PRP$">My</word>
  <word wid="1" pos="NN">dog</word>
  <word wid="2" pos="RB">also</word>
  <word wid="3" pos="VBZ">likes</word>
  <word wid="4" pos="JJ">eating</word>
  <word wid="5" pos="NN">sausage</word>
  <word wid="6" pos=".">.</word>
</sentence>
</pos>

or use

$pos->setOutputFormat(StanfordTagger::OUTPUT_FORMAT_TSV);

for

My  PRP$
dog NN
also    RB
likes   VBZ
eating  JJ
sausage NN
.   .

setModel(), setJarArchive() and setClassfier()

All packages are loaded automatically but if you want to change that you can set them manually.

$pos = new \StanfordTagger\POSTagger();

$pos->setModel(__DIR__ . '/stanford-postagger-full-2018-10-16/models/english-bidirectional-distsim.tagger');

$pos->setJarArchive(__DIR__ . '/stanford-postagger-full-2018-10-16/stanford-postagger.jar');

CRFClassifier

• For English only, download the required packages for the CRFClassifier here.
• You have to download the language models separately:
  • German models
  • Spanish models
  • Chinese models
• Extract the (.jar) files if you downloaded a language model and add them into your directory.

Example

$ner = new \StanfordTagger\CRFClassifier();

$ner->tag('Albert Einstein was a theoretical physicist born in Germany.');

Albert/PERSON Einstein/PERSON was/O theoretical/O physicist/O born/O in/O Germany/LOCATION./O 

Contribute

Feel free to contribute to this repository. Any help is welcome.