i want to remove every thing in my string before first -

i want to remove every thing in my string before the -

$url = "jdhsfiusdif-keep this"

i also want to remove - i want only to keep "keep this"

want your help

 

$before = strstr($url, '-', true);

PHP:

If you don't have PHP5, but rather PHP4, use the following:

$before = substr($url, 0, strpos($url, '-'));

PHP:

 

thanks

but i want also to remove -

 

Hy,
You can use preg_replace():

<?php
$url = "jdhsfiusdif-keep this";
$remove = '/^([^-]+-)/';
$url2 = preg_replace($remove, '', $url);
echo $url2;        // keep this
?>

PHP:

 

Oh apologies, I read your post incorrectly.

You want "keep this", in which case:

$url = substr(strstr($url, '-'), 1);

PHP:

My original example keeps everything before the first '-'. This one keeps everything after the first '-'.
As for MarPlo's example, it'll likely work fine but strstr is much more efficient, faster.

 

thanks verrrrrrrry much for your help it really works

 

i want to thank you for your interest you are so kind

your code works too

thanks so much

 

Just FYI, substr() is faster and less memory intensive than strstr().

 

They don't do the same thing. substr returns a substring from a starting position to an ending position in a string. strstr returns the part of a string from the position of a given needle.
Can't be compared like that really unless you were referring to my substr/strpos combination above, in which case I did use substr.

 

I was. I was just pointing out that doing it that way is better than using strstr().

 

I'd do it like this.

function keepthis($var){
  $str = explode("-",$var);
  return $str[1];
}

Code (markup):

 

Then you're left with the problem which occurs when $var = 'abc-def-ghi'. It'd return 'def' rather than 'def-ghi'.
In this case it'd work fine though.

 

<?php
echo substr("Str");
?>