Q:

Internet search engine giant, such as Google accepts web pages around the world and classify them, creating a huge database

hamza
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2022-05-18
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Internet search engine giant, such as Google accepts web pages around the world and classify them, creating a huge database. The search engines also analyze the search keywords entered by the user and create inquiries for database search. In both cases, complicated processing is carried out in order to realize efficient retrieval, but basics are all cutting out words from sentences.
Write a PHP program to cut out words of 3 to 6 characters length from a given sentence not more than 1024 characters.

Input: Multiple character strings are given. One string is given per line

Input:
English sentences consisting of delimiters and alphanumeric characters are given on one line.

Php programming,
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hamza
2022-05-18
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<?php
$stdin = trim(fgets(STDIN));
echo "Original string: ".$stdin; 
$words = preg_split("/[\s,\.]/", $stdin);
$compWords = array();
for ($i = 0; $i < count($words); $i++) {
  if (strlen($words[$i]) > 2 && strlen($words[$i]) < 7) {
    $compWords[] = $words[$i];
  }
}
echo "\nWords  of 3 to 6 characters length: ";
print implode(' ', $compWords) . PHP_EOL;

?>

Sample Input:
The quick brown fox

Sample Output:

Original string: The quick brown fox
Words  of 3 to 6 characters length: The quick brown fox

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