replacing certain images with certain words - php

Question

i want to change the word :)) to a smily img before displaying it from database with php how can i do that

Answer 1

A solution would be to use the str_replace function.
For instance (Using ":-)", which I like more than your ":))" -- only a matter of taste ^^ Up to you to use the "right one") :
$str = "This is a sentence with a smiley :-)";
$new_str = str_replace(
array(
':-)',
),
array(
'<img src="smiley.png" alt=":-)" />'
),
$str
);
echo $new_str;
Will get you this output :
This is a sentence with a smiley <img src="smiley.png" alt=":-)" />
i.e. the smiley has been replaced with an image.
Note that I used an array for the first and second parameter, when calling str_replace : if you have other smileys, you can just add them to those two arrays (the first array being for the "searched" string, and the second for the "replacement").
(What I mean is : no need to call str_replace several time : one time, using arrays, should be enough for several replacements)
And, as a sidenote : I used the original "text" of the smiley for the alt attribute of the img tag : this way, if the image cannot be displayed, the browser will display the textual version of the smiley -- which is better than nothing.

Answer 2

You could use something like:
str_replace(':))', '<img src="path to your image" title="image title" />', $string);
If you want to replace multiple 'smileys', use arrays:
$find = array(
':)',
':('
);
$replace = array(
'<img src="path to happy image" title="" />',
'<img src="path to sad image" title="" />');
);
str_replace($find, $replace, $string);

Answer 3

You can use something like the following. Create a new replacement for each image you've got.
$message = str_replace(":)", "<img src='happy.png' alt=':)'/>", $message);
$message = str_replace(":(", "<img src='unhappy.png' alt=':('/>", $message);
This will turn $message "I'm happy :)" into "I'm happy <img src='happy.png' alt=':)'/>". The alt tag reveals the original smiley when users don't see images.