search for files with established criteria php

Question

as the title suggests, I would like to create a file search system with criteria. I would like to filter the file name whether it contains a specific sequence of numbers or letters.

example:

CRITERIA WITH WHICH I WOULD FILTER THE RESEARCH

value 1 = FRGHSD02D5102T value 2 = 005878

[file] 00256_FRGHSD02D5102T0013005878.TXT I WANT TO FIND IT

FRGHSD02D5102T00256_0013005878.TXT I WANT TO FIND IT

_FRGHSD02D5102T001300587800256.TXT I WANT TO FIND IT

00058_GHT52DSF56S03U0014002545.TXT I DO NOT WANT TO FIND IT

I tried to get this using the glob () function;

$ files = glob ("... / ..... / *. txt");

so he finds nothing

$ files = glob ("... / ..... / *. txt / * {002} * {001} *. txt");

thanks a lot

Answer 1

The following syntax can be used:

^.*(FRGHSD02D5102T|005878).+$

This would match any line that contains FRGHSD02D5102T or 005878:

00256_FRGHSD02D5102T0013005878.TXT ✅
FRGHSD02D5102T00256_0013005878.TXT ✅
_FRGHSD02D5102T001300587800256.TXT ✅
00256_005878.TXT ✅
FRGHSD02D5102T.TXT ✅
00058_GHT52DSF56S03U0014002545.TXT ❌
00256_005873.TXT ❌

This can be combined with glob to search through all folders and subfolders for the specific pattern:

$folder = __DIR__ . '/data';
$pattern = '/^.*(FRGHSD02D5102T|005878).+$/';

$dir = new RecursiveDirectoryIterator($folder);
$ite = new RecursiveIteratorIterator($dir);
$files = new RegexIterator($ite, $pattern, RegexIterator::GET_MATCH);

foreach($files as $file) {
    echo 'found matching file: ' . $file[0] . PHP_EOL;
}

the folder structure:

data
|-- 00256_FRGHSD02D5102T0013005878.TXT
|-- example.TXT
`-- test
    `-- YES256_FRGHSD02D5102T0013005878.TXT

the result:

found matching file: /Users/stackoverflow/dev/data/00256_FRGHSD02D5102T0013005878.TXT
found matching file: /Users/stackoverflow/dev/data/test/YES256_FRGHSD02D5102T0013005878.TXT

When searching for an specific extension the following snippet can be used:

.pdf

$pattern = '/^.*(FRGHSD02D5102T|005878|001|002).*\.pdf$/';

.txt

$pattern = '/^.*(FRGHSD02D5102T|005878|001|002).*\.TXT$/';

.pdf, .PDF, .PdFm, contains 001 and 002 OR 002 and 001

$pattern = '/^.*(FRGHSD02D5102T|005878|001.*002|002.*001).*\.pdf/i';

matches:

data
|-- 00256_FRGHSD02D5102T0013005878.TXT ❌
|-- example.TXT ❌
|-- hell001hello.pdf ❌
|-- hell001hello002.pdf ✅
|-- hell002hello001.pdf ✅
`-- test
    `-- YES256_FRGHSD02D5102T0013005878.TXT ❌

The /i makes it case-insensitive so it will match any casing of PDF.

The \. escapes the . because we need to match the literal . instead of matching all characters.