Want to remove duplicates in a string

[Ragnorack67]

Hello again, I have one further question about improving a validation.
Currently this will validate a string of words separated by commas, and
if it's greater than 9 will do something, or something else if less
than 9. How can I improve this, so before it does the checking remove
any duplicates in the string?

<?
$tmp = explode(',',$your_str);
if (count($tmp) > 9) {
// do something

} else {

// do something else

}
?>

[Jan Pieter Kunst]

Ra*********@hotmail.com wrote:

Hello again, I have one further question about improving a validation.
Currently this will validate a string of words separated by commas, and
if it's greater than 9 will do something, or something else if less
than 9. How can I improve this, so before it does the checking remove
any duplicates in the string?

<?
$tmp = explode(',',$your_str);
if (count($tmp) > 9) {
// do something

} else {

// do something else

}
?>

$tmp = array_unique(explode(',', $your_str));

By the way, if it doesn't become unreadable to you, and you don't need
the $tmp variable later on, you could do away with $tmp and use this
directly:

if (count(array_unique(explode(',', $your_str))) > 9)
HTH,
JP

--
Sorry, <de*****@cauce.org> is a spam trap.
Real e-mail address unavailable. 5000+ spams per month.

[Janwillem Borleffs]

Ra*********@hotmail.com wrote:

Hello again, I have one further question about improving a validation.
Currently this will validate a string of words separated by commas,
and if it's greater than 9 will do something, or something else if
less than 9. How can I improve this, so before it does the checking
remove any duplicates in the string?

$tmp = array_unique(explode(',',$your_str));
JW

[Ragnorack67]

Hello! Well, I need to keep the original string intact with its comma
delimiters. I need this to read that string, remove all duplicate key
phrases, and then check if 9 or more unique key phrases are in there.
If it then passes it should do something, otherwise something else.

[Michael Fesser]

.oO(Ra*********@hotmail.com)

Hello! Well, I need to keep the original string intact with its comma
delimiters.

The posted code doesn't touch the original string.

Micha

[Ragnorack67]

I am still pulling my hair out with this. :O I don't want to lose the
commas, or keep it in an array right now, I want to store it in a
database with duplicates removed, so if someone inputs:

"green,blue,red,blue,green"

I want to get back a string with:

"green,blue,red"

Michael Fesser wrote:

.oO(Ra*********@hotmail.com)

Hello! Well, I need to keep the original string intact with its commadelimiters.

The posted code doesn't touch the original string.

Micha

[Geoff Berrow]

I noticed that Message-ID:
<11*********************@z14g2000cwz.googlegroups. com> from
Ra*********@hotmail.com contained the following:

I am still pulling my hair out with this. :O I don't want to lose the
commas, or keep it in an array right now, I want to store it in a
database with duplicates removed, so if someone inputs:

"green,blue,red,blue,green"

I want to get back a string with:

"green,blue,red"

<?php
$string="green,blue,red,blue,green,green,red,blue" ;

$string_array=explode(",","$string");

$output[]=$string_array[0];

for($i=1;$i<count($string_array);$i++){
if(!in_array($string_array[$i],$output)){
$output[]=$string_array[$i];
}
}

print implode(",",$output);

?>

--
Geoff Berrow (put thecat out to email)
It's only Usenet, no one dies.
My opinions, not the committee's, mine.
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