eregi

cash_hr

how can i bold some text with eregi_replace function.

I have $text and $ buffer.
$text is searched text, adn $buffer is all text. I want to bold searched text....

Any help...

mkarabulut

Here is a sample usage :
$buffer=eregi_replace("$text","$text",$buffer);

mkarabulut

hey,this thing let the HTML code, I am writing again,ignore the spaces between < >,just to avoid this 'smart' forum not to interpret html.
$buffer=eregi_replace('$text','$text',$buffer);

Anon

think this is just easy:
:😛HP
$boldtext="".$text."";
$buffer=ereg_replace($text,$boldtext,$buffer);
:😛HP

that's it hope it works;
by the way = consider what you find here if someone searches numbers: http://php3.de/manual/en/function.ereg-replace.php

cash_hr

thanks guys.
I was thinking that i need to use regular expresion.

right code is

$buffer=eregi_replace($text,''.$text.'',$buffer);

thanks again

cash_hr

OKAY!

If you could help some more...
I am trying to create search engine.

Problem with this code is that if I have uppercase text, with this eregi_replace I could change it into the lowwercase (if is typed search text in lower case).

And I want to echo few words before and few words beyond searched text. Any tips please :-(

mkarabulut

hello,
I couldn't get the problem exactly,but here is a few things that can be of use.

To convert a string to uppercase you can use
$str=strtoupper($str);
and to lower case
$str=strtolower($str);

And here is aa function to get a part of string.
$str = substr($str_from_database,0,200);
$str now contains first 200 character of the $str_from_database value.
substr($string_variable_name,int start,int how_many)
and so on
$str_beyond_search=substr($str_from_database,200);
this means start to fetch by the 200st character to the end of string.

I hope it was useful for you.
Good luck...

cash_hr

thanks for replying Mustafa.

but, we dont know where will be our "searched string" in text, so, we should find the position of the "searched string" in the text and echo it with (for exemple) 50 chars before and 50 chars behind "searched string".

Do you understand what am I thinking.

Like in all search engines. You can search for word and get some preview of text where is it found.

Thanks you for your time

mkarabulut

hmm.check the code and tell me whether I could understand.
<?
//consider $str is pulled from database
//and $word was being searched
$pos=strpos($str,$word);

if ($pos>50)
{
$str=substr($str,$pos-50,50);

}
else
{
$str=substr($str,0,50)
}
//and highlighting
//ignore spaces
$str=eregi_replace($word,"$word",$str);

good luck.

nova3d

but i dont want it to replace the string, i simply want a form validator which checks for unwated synthax in the entries. Anything non alpha, or numeric.

Anon

Ouch, you mean

$buffer=eregi_replace($text,"$text",$buffer);

don't you?

WARNING: If there are any special regexp characters in $text, '.' or '?', say, this could break; ereg always reads the first string as a regular expression.

Since PHP doesn't appear to have a POSIX-regexp-quoting function, I'll switch to preg_replace and use the one it has:

$buffer=preg_replace('/'.preg_quote($text).'/i', "$text", $buffer);