Create a PHP website to take any given text file as input and search for words matching with the given regular expression and list down the resultant word set.
Question
Create a PHP website to take any given text file as input and search for words matching with the given regular expression and list down the resultant word set.
Solution
Sure, here is a simple PHP script that can be used to read a text file and search for words matching a given regular expression.
<!DOCTYPE html>
<html>
<body>
<form method="post" enctype="multipart/form-data">
Select file to upload:
<input type="file" name="fileToUpload" id="fileToUpload">
<input type="submit" value="Upload File" name="submit">
</form>
</body>
</html>
<?php
if(isset($_POST["submit"])) {
$file = $_FILES['fileToUpload']['tmp_name'];
$handle = fopen($file, "r");
$contents = fread($handle, filesize($file));
fclose($handle);
// specify your regular expression here
$regex = "/your-regex-here/";
preg_match_all($regex, $contents, $matches);
// print the matching words
foreach($matches[0] as $match) {
echo $match . "<br>";
}
}
?>
This script creates a simple form to upload a file. When the form is submitted, the PHP script reads the file, applies the regular expression to the contents of the file, and prints the matching words.
Please replace "your-regex-here" with your actual regular expression.
Please note that this is a very basic script and does not include any error checking or security measures. In a real-world application, you would want to add checks to ensure that the uploaded file is a text file and that it does not exceed a certain size. You would also want to handle any errors that might occur when opening the file.
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