add html tags to a variable string

Question

lets say

$keyword = obama
$result = "US President Barack Obama on Wednesday signed a landmark law"

How do i make that everytime $keyword appears inside $result it changes the $keyword to be inside <strong></strong> tags?

str_replace doesn't work because if the keyword is in lowercaps and the result obama is in higuer caps it wouldnt replace it.

Thanks

edit: found the answer, in case anyone needs it this is the code

$myWords = array($keyword);
function boldText($arrWords, $strSubject)
{
     if (!is_array($arrWords)) return;
     foreach ($arrWords as $strWord)
     {
          $strSubject = preg_replace('@(' . preg_quote($strWord, '@') . ')@i', "<b>\\1</b>", $strSubject);
     }
     return $strSubject;
}

Beware using this approach if the source data is likely to contain any HTML or indeed URLs, etc. (e.g.: What happens in the word "obama" is in a URL.) — John Parker
– John Parker, Commented Dec 22, 2010 at 18:47
I take the $result from a string that is only a short description that doesn't contain any html neither is a url. the thing is i need to put it bold even if the string has caps letters — Peibol
– Peibol, Commented Dec 22, 2010 at 19:04

Mark Baijens · Accepted Answer · 2010-12-22 19:24:39Z

1

str_replace (ucfirst($keyword), "<strong>" . $keyword . "</strong">, $result);

or use a regex with case insensitive.

edited Dec 22, 2010 at 19:24

answered Dec 22, 2010 at 18:36

Mark Baijens

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1 Comment

Peibol Over a year ago

str_replace doesn't work because if the keyword is in lowercaps and the result obama is in higuer caps it wouldnt replace it.

troynt · Accepted Answer · 2010-12-22 18:36:38Z

0

<?php
function boldText($string, $array) {
  $string = strip_tags($string);
  return preg_replace('~('.implode('|', $array).'[a-zA-Z]{0,45})(?![^<]*[>])~is', '<strong>$0</strong>', $string );
}
?>

from http://php.bigresource.com/bold-string-from-array-of-keywords-HLRL2A8c.html

answered Dec 22, 2010 at 18:36

troynt

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3 Comments

Peibol Over a year ago

that didnt work :/ it removed all text and left only $string in bold.

troynt Over a year ago

works fine for me. echo boldText('US President Barack Obama on Wednesday signed a landmark law',array('Obama'));

Peibol Over a year ago

i finally got it from the same website you told me, but there was another code at the end of the page.. So thank you :)

Surreal Dreams · Accepted Answer · 2010-12-22 18:36:47Z

0

You can use str_replace:

str_replace ( mixed $keyword, mixed '<strong>' . $keyword . '</strong>', mixed $result)

This will replace the $keyword with itself, surrounded by <strong> tags.

answered Dec 22, 2010 at 18:36

Surreal Dreams

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1 Comment

Peibol Over a year ago

str_replace doesn't work because if the keyword is in lowercaps and the result obama is in higuer caps, it wouldnt replace it.

James Alday · Accepted Answer · 2010-12-22 18:37:21Z

0

I'm sure there are probably other methods, but I'd use preg_replace(). Something like:

$result = preg_replace($keyword , "<strong>$keyword</strong>" , $result);

answered Dec 22, 2010 at 18:37

James Alday

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