check similariries between text files: i want to check different text documents to find similarities

Am developing a plagiarism detection software with laravel and am at a point where i want to fetch a text file and compare it with other text files to find matching contents

by riccardo castagna package author 75 - 2 months ago (2018-06-27) Comment

This php package is useful to compare two different texts in the hypothesis that the two source texts have a good spelling and a correct punctuation. It finds similar sentences and returns the percentages, these percentages are the measures of how much the sentences are similar with each others. Possible applications and uses could be in the field of journalism, for example, to find the similar articles, in the cases of plagiarism, for investigations of various kinds when it is necessary to analyze and compare texts with each other. I hope this could be useful for the developing of your software

by zinsou A.A.E.Moïse package author 5350 - 2 months ago (2018-06-26) Comment

The habit here is to recommend the best package to achieve the asked purpose,however for want of the best I suggest this package that you can use this way :

require the main class file then in your script use this function

function similarfile($ffile,$sfile,$round=2,$insensitive=true,&$stat=null,&$diff=null){

if(!file_exists($ffile)||!file_exists($sfile)) return false;
$diff=array();
return similarText(file_get_contents($ffile),file_get_contents($sfile),$round,$insensitive,$stat,$diff);

}

eg: echo '<pre>'; var_dump(similarFile(__FILE__,__FILE__,2,true,$stats,$diff),$stats,$diff);

will print

float(100) array(3) { ["reallycontain"]=> bool(true) ["contain"]=> bool(true) ["percentageRc"]=> int(100) } array(0) { }