Want to replace the last occurance !

[zeeshanhashmi]

Hello

I have a string with few words. I want to replace the last occurrence of [SPACE] with [COMMA][SPACE]

Means suppose this is my string :

word1 word2 word3 word4 word5

will be changed to :

word1 word2 word3 word4, word5

Please give me some hint how to do this !

Thanks

[ScallioXTX]

$str = 'word1 word2 word3 word4 word5';
$str = substr_replace($str, ', ', strrpos($str, ' '), 1);
print $str; // word1 word2 word3 word4, word5 

See:
http://nl3.php.net/manual/en/functio...tr-replace.php

and

http://nl3.php.net/manual/en/function.strrpos.php

[AnthonySterling]

<?php
echo preg_replace(
    '~(\\s)(?=\\w+$)~',
    ', ',
    'word1 word2 word3 word4 word5'
); #word1 word2 word3 word4, word5
?>

[zeeshanhashmi]

oh thanks a lot both of u are great !