Sure I've done this before - removed end of string

[richrock]

Hi all,

 

I've got a string, extracted from a database of stored filenames.  I can remove the .jpg part, and I need to also remove the last part - a couple of examples:

 

21_amati-andrea_cremona-circa1580-rtc - need to remove '-rtc'

33_amati-antonius-and-hieronymus_cremona-circa1620-b - need to remove '-b'

35_amati-antonius-and-hieronymus_cremona-circa1620-rs - need to remove '-rs'

 

These are view codes on the image for a page being used to show different views of an instrument.  I just need to dynamically extract this part to make a SEF url.

 

Anyone know how to remove the end part including the '-'?  I'm sure I'd done it before, but cannot figure out whne or where 

 

I've checked the PHP pages, and looked through w3c schools pages but nothings registering with my brain cells... 

[deanlearner]

for each input line...

 

$tmp = explode('-',$input);
$output = str_replace('-'.$tmp[count($tmp)-1],'',$input);

[Ken2k7]

Try this:

$str = substr(0, strrpos($str, "-"));

[deanlearner]

Ooo nice, I didnt realise strrpos returned the last instance, do what Ken2k7 said.

[Adam]

Try this:

$str = substr(0, strrpos($str, "-"));

 

That wouldn't remove past the last hyphen only store it, use substr_replace instead:

 

$str = substr_replace($str, '', strrpos($str, '-'));

[richrock]

deanlearners snippet did it for me - I'll keep that on snipplr now   Thanks

[Ken2k7]

Oops, I left out a parameter:

 

$str = substr($str, 0, strrpos($str, "-"));