如何从PHP中的字符串中取一些特定的单词？

I have a table in mysql that contain two columns or fields, one column is for an id_column and others for description of string type. I would like to insert an specific string to the column description.

For example:

insert into table_name (id, description) values ('1','we go to school')

And then in my php file, I would like to fetch the specific word "school" from the column description.

How can I do this?

You can use like with wildchar .

   select * from your_table 
   where description like '%school%';

in php for find if a string contain a word you can use

$my_string = 'we go to school';

if (strpos($my_strong, 'school') !== false) {
   echo 'string found';
}

You'll be needing to use SQL Wildcard Characters

So your query can be something like:

select * from tabel where description like '%school%';

EDIT :

I guess you need to get description first then according to it you want to manage the output.

For that try this :

$sqldata= mysqli_query('select * from tabel)';
$rowcount=mysqli_num_rows($sqldata);
if($rowcount > 0)
{
    while($result = mysqli_fetch_assoc($sqldata)) // fetch records
    {
       $description = $result['desription'];
       $id = $result['id'];
    }
}

I'm not really understand what you want. But I guess, you want to get image source from the description column.

$q = mysql_query("select id, description from tabel");
$row = mysql_fetch_assoc($q);

$html = $row["description"];

preg_match( '@src="([^"]+)"@', $html, $match );

$src = array_pop($match);

echo $src;