[Resolved] Removing X number of characters at the end of a string

dougmcc1

How do I chop of the last X number of characters of a string?

dta

i forget the function but something like

$string="abcdef";
$chop=2;
echo substr($string,0,-$chop);

// thanks LordShryku for the tip*

would work

-- or as a function

$string="abcdef";
function strchop(&$string,$chars){
 return $string=substr($string,0,-$chars);
}
echo $string . "<br>\n";
strchop($string,2);
echo $string;

dougmcc1

Ok thanks.

LordShryku

Or substr($string,0,-$chop); i you wanna lose the strlen calculation and make it a microsecond faster 😃

dougmcc1

Quicker the better 🙂

Thanks guys.

dta

Originally posted by LordShryku
Or substr($string,0,-$chop); i you wanna lose the strlen calculation and make it a microsecond faster 😃

hmm, forgot you could even do that. thanks 🙂

seby

$string = substr($string), 0, 2);

thats the best/fastest method.

LordShryku

Originally posted by seby
$string = substr($string), 0, 2);

thats the best/fastest method.

Huh? That wouldn't even work.....

tekky

Originally posted by LordShryku
Huh? That wouldn't even work.....

and it would do the opposite of what he wants if it by some miracle did work....

he wants the LAST 2, not the FIRST 2...

$last_two = substring($string,0,-2);

thats the fastest/easiest way.....

LordShryku

Yeah, but it would bomb out on the missing paren.

Anyway, bygons

seby

its a typo , its common sense there is an extra )

change the 2 to whatever and it will leave that many characters in the string, add a minus sign and it will remove 2 ..

LordShryku

Which is what I showed him waaaay up there.....

drawmack

[toung in cheek]
I think this would be best

<?php
function very_expensive_chopper($string,$to_chop) {
    $to_process = str_split($string);
    $delimiter = count($to_process) - $to_chop;
    $retval = '';
    for($i=0;$i<delimiter;$i++) {
        $retval .= $to_process[$i];
    } //end for
    return $retval;
}
?>

[/toung in cheek]

seby

i noticed that, i tend to hit the reply button too quickly sometimes 😉

also, it a good idea to use trim and strip_tags, otherwise, \n will count as a character and so will html

so i would use something like this:

substr(trim(strip_tags($string)), 0, -2);

if you dont, and you have <b>foo</b> at the end of the string you'll end up with: foo</

you may also specify some html tags in the strip_tag funciton so it wont remove the word, just the html itself.

dougmcc1

lol

Geeks.

🙂

LordShryku

HEY! I re[pre]sent that remark! 😃

dougmcc1

I believe the correct syntax is <pre> 😛

LordShryku

No one gets my humor...

with [pre] - > represent
without - > resent

I resent that. Represent that...ha...nevermind 🙁

dougmcc1

Oh you were trying to be funny. Good try

hehe

dta

cmon, quit being nice to eachother- flame wars are MUCH funnier

(quote) kick his ass sea bass! (/quote)