Hello guys I'm making a search engine script. There is one part in the script that I have problem with...

This function is supposed to make the description that will be displayed bolded if it's the same with the search term....

PHP Code:

function make_bolded($string,$term){
    $words = explode(" ",$string);
    $bolded_string = "";
    $sterms = explode(" ",$term);
    for($i=0;$i<count($words);$i++){
        $w = $words[$i];
        $lowword = strtolower($w);
        for($x=0;$x<count($sterms);$x++){
            $lowsterm = strtolower($sterms[$x]);
            switch($lowword){
                case $lowsterm : $w = "<b>" . $words[$i] . "</b>";
                break;
                case "{$lowsterm}'" : $w = "<b>" . $words[$i] . "</b>";
                break;
                case "{$lowsterm}'s" : $w = "<b>" . $words[$i] . "</b>";
                break;
                case "{$lowsterm}," : $w = "<b>" . $words[$i] . "</b>";
                break;
                case "{$lowsterm}." : $w = "<b>" . $words[$i] . "</b>";
                break;
                case "{$lowsterm};" : $w = "<b>" . $words[$i] . "</b>";
                break;
            }
        }
        $bolded_string .= " " . $w . " ";
    }
    return $bolded_string;
} 


for example...if you do $boldedhello = make_bolded("hello my","hello") , this function's supposed to make the "hello" in the string "hello my" bolded...so $boldedhello should contain the string "<b>hello</b> my"....

The problem is...that it only change the words into bolded if it's not the first or last word in the string...and I wonder what's wrong with my code that it does such thing.

For example

$bolded = make_bolded("what the heck","what");

will make $bolded contain "what the heck" even though it's supposed to be "<b>what</b> the heck"...

But if you do

$bolded = make_bolded("what what the heck","what");

It will change the second what into bolded like this:

"what <b>what</b> the heck"....

Can any of you help...thank you very much.....

Seems to be working for me. I just cleaned it up a bit (don't think I did anything else lol):

PHP Code:

function make_bolded($string,$term){
    $words = explode(' ', $string);
    $bolded_string = '';
    $sterms = explode(' ', $term);

    for($i = 0; $i < count($words); $i++)
    {
        $w = $words[$i];
        $lowword = strtolower($w);

        for($x = 0; $x < count($sterms); $x++)
        {
            $lowsterm = strtolower($sterms[$x]);

            switch($lowword)
            {
                case $lowsterm:
                case "$lowsterm'":
                case "$lowsterm's":
                case "$lowsterm,":
                case "$lowsterm.":
                case "$lowsterm;":
                    $w = '<b>' . $words[$i] . '</b>';
                    break;
            }
        }

        $bolded_string .= " " . $w . " ";
    }

    return $bolded_string;
}

echo make_bolded('hello; there', 'hello'); 


Produced:

hello; there

(<b>hello;</b> there)

hmmm...you're right...there's nothing wrong with this function...I tested the function and it worked perfectly...

Arrrgh...then the problem's gotta be in other part of my script...errr...i'll need a good luck searching for the problem

anyway, thanks for cleaning up the code....It's easier to decipher (I guess my scripts're too crammed up...)

PS: I hate bugs...especially when I have 238 lines of code....