Hi Ed,
first example has been covered by others, so onto the next:
> Pulling a word between two other words without having to know what the
word
> is. For example, pulling whatever word displays between "the" and
> "sky". If the string was "the blue sky", the result would be the word
> blue. If the string were "the green sky", the result would be the word
green.
I don't quite understand what you mean by "pulling", but this example will:
1. Take out any words if they exist.
2. Store those removed words into an array for you to use later, should you
need to see what was taken out.
Example 2\nOriginal string: " . $string . "\n";
if (preg_match_all("!the\s(.*?)\ssky!is", $string, $output))
{
// Use an array to store all the matches.
$saved = array();
for($i=0; $iReplaced: " . $string . "\n\n";
if (!is_array($saved))
{
echo $saved;
}
else
{
echo "The following words were taken out of the pattern:\n";
for ($i=0; $i\n";
}
}
?>
There's nothing complicated about the match:
preg_match_all() - see manual
! delimiters !
the - first word
\s - space
(.*?) - everything up to next (non greedy)
\s - space
sky - word
i - case insensitive
s - treat new lines (\n as .)
If you just want to rip stuff out, then you can use preg_replace():
$string = preg_replace("!(the)\s.*?(\ssky)!is", "$1$3", $string);
See the manual, or search these archives for further examples if you're
struggling Regexes (and when to use them) take a little getting used to,
but they're definitely worth learning :)
Hope it helps.
James
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