PHP coding help

[myares]

i want to replace a part of a variable ($) but i can't figure it out

 

suppose, if

 

$a = 'this is a title';

 

I want to replace it as

 

$a = '<b>this is</b> a title'; or $a = '<b>this</b> is a title';

 

can someone help me?

[thewooleymammoth]

$a = str_replace('this', '<b>this</b>', $a);

 

http://us.php.net/manual/en/function.str-replace.php 

[myares]

$a = str_replace('this', '<b>this</b>', $a);

 

http://us.php.net/manual/en/function.str-replace.php 

 

well... i am not only talking about the text "this is a title" i want a code which will put something like (<b>)  before the first word of the text and  (</b>) after the first word of the text.. whatever the text is.

[thewooleymammoth]

http://www.regular-expressions.info/php.html

[myares]

http://www.regular-expressions.info/php.html

 

thank but more accurate help would be better because i'm not much familiar in using regular expressions.

[Rustywolf]

<?php

$list = explode(" ", $input);
$first_word = str_replace($list[0], "<b>" . $list[0] . "</b>", $input);

?>

[myares]

<?php

$list = explode(" ", $input);
$first_word = str_replace($list[0], "<b>" . $list[0] . "</b>", $input);

?>

 

Thanks a lot mate.. it worked. It freaked me out when no one was replying. Thanks!