php multiple search values in file path - php

Question

I am working on a php site that needs to search a set of files with any combination of search fields.
The possible search fields are
id, year, building, lastname, firstname, birthdate
The folder structure and file names are as such
/year/building/file.pdf
The filenames contain the data to search
id_lastname_firstname_MM_dd_yy.pdf
I have everything working on the site except this part. Originally I only had ID, year, and building and I was able to do if's to check for every possibility of combinations. Now there is way more combinations so it much more complex.
I was thinking nested if and in_array or such, but there has to be a better way. I just learning my way around php.
I would like to be able to search with any combination of fields. I can change the filenames if it helps.
I started with something like this
function search($transcripts, $studentid=null, $year=null, $building=null, $last=null, $first=null, $birthdate=null){
$ext = '.pdf';
date_default_timezone_set('America/Los_Angeles');
$dir_iterator = new RecursiveDirectoryIterator("../transcripts");
$iterator = new RecursiveIteratorIterator($dir_iterator, RecursiveIteratorIterator::SELF_FIRST);
foreach ($iterator as $file) {
if ($file->isFile()){
$path = explode('\\',$file->getPath());
$fname = explode('_', $file->getBasename($ext));
if($path[1] == $year){
if($path[2] == $building){
if(in_array($last, $fname, true)){
if((in_array($first, $fname, true)){
if((in_array($birthdate
Originally I had seperate functions depending on which fields where filed in.
function bldStuSearch($building, $studentid, $transcripts){
$ext = '.pdf';
date_default_timezone_set('America/Los_Angeles');
$dir_iterator = new RecursiveDirectoryIterator("../transcripts");
$iterator = new RecursiveIteratorIterator($dir_iterator, RecursiveIteratorIterator::SELF_FIRST);
foreach ($iterator as $file) {
$results = explode('\\',$file->getPath());
//var_dump($results);
if (($file->isFile()) && ($file->getBasename($ext)==$studentid) && ($results[2] == $building)){
//echo substr($file->getPathname(), 27) . ": " . $file->getSize() . " B; modified " . date("Y-m-d", $file->getMTime()) . "\n";
$results = explode('\\',$file->getPath());
//var_dump($results);
//$building = $results[2];
$year = $results[1];
//$studentid = $file->getBasename($ext);
array_push($transcripts, array($year, $building, $studentid));
//var_dump($transcripts);
//$size += $file->getSize();
//echo '<br>';
}
}
//echo "\nTotal file size: ", $size, " bytes\n";
if (empty($transcripts))
{
header('Location: index.php?error=2'); exit();
}
return $transcripts;
}
Now I am trying to have one search function to check for any combination? Any idea that would at least put in the right direction?
Thanks.

Answer 1

So I had an idea about doing a scoring system but then dismissed it. I came back to it and found a way to make it work using a weighted scoring system.
This allows the search to be super flexible and maintain being portable, not requiring a database for the metadata and using the filename as the search data without having to search each PDF. I am using A-Pdf splitter to split the PDF into separate files and add the metadata to the filename.
I hope someone some day finds this useful for other searches. I am really happy the way this turned out.
I will post the entire code when I am done on http://github.com/friedcircuits
One thing I should change is to use named keys for the arrays.
Here is the resulting code. Right now the birthdate has to be entered as m-d-yyyy to match.
function search($transcripts, $studentid=null, $year=null, $building=null, $last=null, $first=null, $birthdate=null){
$ext = '.pdf';
$bldSearch = false;
date_default_timezone_set('America/Los_Angeles');
if (($building == null) AND ($year == null)){ $searchLocation = "../transcripts";}
elseif (($year != null) AND ($building != null)){$searchLocation = "../transcripts/".$year."/".$building;}
elseif ($year != null) {$searchLocation = "../transcripts/".$year;}
elseif ($building != null) {
$searchLocation = "../transcripts/";
$bldSearch = true;
}
else{$searchLocation = "../transcripts";}
$dir_iterator = new RecursiveDirectoryIterator($searchLocation);
$iterator = new RecursiveIteratorIterator($dir_iterator, RecursiveIteratorIterator::SELF_FIRST);
$score = 0;
foreach ($iterator as $file) {
if ($file->isFile()){
//Fix for slashes changing direction depending on search path
$path = str_replace('/','\\', $file->getPath());
$path = explode('\\',$path);
$fname = explode('_', $file->getBasename($ext));
//var_dump($path);
//echo "<br>";
//var_dump($fname);
//echo "<br>";
//fix for different search paths
if($path[1] == "transcripts"){
$pYear = $path[2];
$pbuilding = $path[3];
}
else{
$pYear = $path[1];
$pbuilding = $path[2];
}
if ($bldSearch == true){
if ($building != $pbuilding) {continue;}
}
//$fname[1] = #strtolower($fname[1]);
//$fname[2] = #strtolower($fname[2]);
if($fname[0] == $studentid){
$yearS = $pYear;
$buildingS = $pbuilding;
$studentidS = $fname[0];
$lastS = $fname[1];
$firstS = $fname[2];
$birthdateS = $fname[3];
array_push($transcripts, array($yearS, $buildingS, $studentidS, $lastS, $firstS, $birthdateS));
continue;
}
if($pYear == $year){
$score += 1;
}
if($path[2] == $building){
$score += 1;
}
if(#strpos(#strtolower($fname[1]),$last) !== false){
$score += 3;
}
if(#strpos(strtolower($fname[2]), $first) !== false){
$score += 3;
}
if($fname[3] == $birthdate){
$score += 3;
}
//echo $score." ";
if ($score > 2) {
$yearS = $pYear;
$buildingS = $pbuilding;
$studentidS = $fname[0];
$lastS = $fname[1];
$firstS = $fname[2];
$birthdateS = $fname[3];
array_push($transcripts, array($yearS, $buildingS, $studentidS, $lastS, $firstS, $birthdateS));
//var_dump($transcripts);
}
}
$score = 0;
}
if (empty($transcripts))
{
header('Location: index.php?error=2'); exit();
}
return $transcripts;}