How to insert a string into another string?

[Ken Robinson]

This one has me stumped...

Let's say I have a string consisting of n words (where n > 0). I would like
to insert string 'abcd' between the first and second characters of each
word of the string.

I could probably use a combination of explode, implode and substr, but I
was wondering if there is a more elegant way of doing it using regular
expressions?

Thanks is advance
Ken Robinson
kenrbnsn (at) rbnsn (dot) com

[Senator Jay Billington Bulworth]

In article <2d******************************@news.teranews.co m>,
Ken Robinson <se**********@rbnsn.com> wrote:

This one has me stumped...

Let's say I have a string consisting of n words (where n > 0). I would like
to insert string 'abcd' between the first and second characters of each
word of the string.

I could probably use a combination of explode, implode and substr, but I
was wondering if there is a more elegant way of doing it using regular
expressions?

Try this,

<?php
$string = "This is a test string.";
$string = preg_replace("/( \w)(\w+)/", "\\1abcd\\2", $string);
$string = preg_replace("/^(\w)(\w+)/", "\\1abcd\\2", $string);
echo $string;
?>

Output: Tabcdhis iabcds a tabcdest sabcdtring.

There's probably a regexp to match the first word in the string _and_
words preceded by a space at the same time, and do it all in one line.

hth

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[Jerry Sievers]

Senator Jay Billington Bulworth <fu***@fung.arg> writes:

<?php
$string = "This is a test string.";
$string = preg_replace("/( \w)(\w+)/", "\\1abcd\\2", $string);
$string = preg_replace("/^(\w)(\w+)/", "\\1abcd\\2", $string);
echo $string;
?>

Output: Tabcdhis iabcds a tabcdest sabcdtring.

There's probably a regexp to match the first word in the string _and_
words preceded by a space at the same time, and do it all in one line.

Right. It's the "word voundary" spec that you're looking for...

<?;

print preg_replace('/\b(\S)/',
'$1XXX',
'this is a test string'
);

?>


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Jerry Sievers 305 854-3001 (home) WWW ECommerce Consultant
305 321-1144 (mobile http://www.JerrySievers.com/

[Chung Leong]

Uzytkownik "Jerry Sievers" <je***@jerrysievers.com> napisal w wiadomosci
news:m3************@prod01.jerrysievers.com...

Right. It's the "word voundary" spec that you're looking for...

<?;

print preg_replace('/\b(\S)/',
'$1XXX',
'this is a test string'
);

?>

Look, mom! No capturing!

print preg_replace('/(?<=\b\S)/',
'XXX',
'this is a test string'
);