Question

Need to get the 10 word before and 10 words after for the given text . i mean need to start the 10 words before the keyword and end with 10 word after the key word.

Given text : “Twenty-three”

The main trick : content having some html tags etc .. tags need to keep that tag with this content only . need to display the words from 10before – 10after

content is bellow :

removed

Thank you

Answer 1

This method assumes the words are only separated by spaces (not tabs, newlines or other whitespace) and is dependent upon the PHP library function “strip tags” which probably assumes well-formed HTML (which in my experience is a bad assumption).

$string_content = strip_tags($html_content);
$start_cursor = $end_cursor = strpos($string_content, 'Twenty-three');
for($i = 0; $i < 10; $i++) { // rewind backwards until we find 10 spaces
    $start_cursor = strrpos($string_content, ' ', $start_cursor);
}
for($i = 0; $i <= 10; $i++) { // skip forward until we find eleven spaces 
    $end_cursor = strpos($string_content, ' ', $end_cursor);
}
$result_string = substr($string_content, $start_cursor, $end_cursor - $start_cursor);

untested but i believe it’s an effective approach

optionally, you can sterilize the whitespace:

$string_content = strip_tags($html_content);
$string_content = preg_replace("/\s+/", " ", $string_content); // replace any number of adjacent whitespace characters with a single space