search within files in a directory
During my quest to create a semi-static site that is searchable and fast to load.
I thought while loading all of this content in with ajax and such that it would be interesting if i could do a text search within files using just php and no databases.
Here is two ways to check a single file's content using a string match
if( strpos(file_get_contents("./file.txt"),$_GET['id']) !== false) {
// do stuff
}
or this one which uses a cmd shell grep to find the file, which i prefer not to use but will see how performance goes.
if( exec('grep '.escapeshellarg($_GET['id']).' ./file.txt')) {
// do stuff
}
so now we have to add this to a loop through each file in a directory
header('Content-Type: application/json');
$dir = "./html/";
$file_type = ".html";
$dir_array[] = "";
$searchval = "php";
// Open a directory, and read its contents
if (is_dir($dir)){
if ($dh = opendir($dir)){
while (($file = readdir($dh)) !== false) {
if (strpos($file, $file_type) !== false) {
if($file > " ") {
$file_nice = $file;
$file_nice = str_replace("-", " ", $file_nice);
$file_nice = str_replace(".html", "", $file_nice);
// $file = str_replace(".html", "", $file);
if( strpos(file_get_contents($dir.$file),$searchval) !== false) {
$dir_array[$file] = $file_nice;
}
}
}
}
closedir($dh);
}
}
asort($dir_array);
echo json_encode(array_filter($dir_array));
this is untested code, but i think this should do it. it should add the file name to the array if the $searchval is located
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"Olivia, my eldest daughter, caught measles when she was seven years old. As the illness took its usual course I can remember reading to her often in bed and not feeling particularly alarmed about it. Then one morning, when she was well on the road to recovery, I was sitting on her bed showing her how to fashion little animals out of coloured pipe-cleaners, and when it came to her turn to make one herself, I noticed that her fingers and her mind were not working together and she couldn’t do anything. 'Are you feeling all right?' I asked her. 'I feel all sleepy,' she said. In an hour, she was unconscious. In twelve hours she was dead. The measles had turned into a terrible thing called measles encephalitis and there was nothing the doctors could do to save her. That was...in 1962, but even now, if a child with measles happens to develop the same deadly reaction from measles as Olivia did, there would still be nothing the doctors could do to help her. On the other hand, there is today something that parents can do to make sure that this sort of tragedy does not happen to a child of theirs. They can insist that their child is immunised against measles. ...I dedicated two of my books to Olivia, the first was ‘James and the Giant Peach’. That was when she was still alive. The second was ‘The BFG’, dedicated to her memory after she had died from measles. You will see her name at the beginning of each of these books. And I know how happy she would be if only she could know that her death had helped to save a good deal of illness and death among other children."
I just checked google books for BFG, and the dedication is there.
https://www.google.com.au/books/edition/_/quybcXrFhCIC?hl=en&gbpv=1
Roald Dahl, 1986
