compare elements array PHP

Question

I've a problem with this code: In the array $pi have characters and i'd like to compare the elements of the array if i find different elements i save the information in an other array called $ora, but it isnt work, what's the problem?? Thank you very mych

$uri = 'http://www.site.com';
$output=file_get_contents($uri);

  if (preg_match_all('/<td colspan="1"><div class="tbl_EPG_TimesColumn.*?">(.*?)<\/div><\/td>/s', $output,  $posts, PREG_PATTERN_ORDER)){

 $p=$posts[0];

   }

$count=count($p);

  $ora = array();

  for ($i = 0; $i < $count; $i++) {

    if ($p[$i] != $p[$i++]){

     $ora =  $p;

   }

    echo $ora."     "; 

}

EDIT:

$count=count($p);

$ora = array();

for ($i = 0; $i < $count-1; $i++) {

 for ($j = 0; $j < $count-1; $j++) {

    if ($p[$i] != $p[$i+1]){

            $ora[$j] =  $p[$i];
     }  
  }

}

$count2=count($ora);

for ($j = 0; $j < $count2; $j++) {

echo $ora[$j]." ";

}

---

i tried it but it doesnt work, what is the wrong'??

this is the output:

11:00 PM

11:00 PM

11:00 PM

11:00 PM

11:00 PM

11:00 PM

11:00 PM

11:00 PM

11:00 PM

Answer 1

I'm not sure I understand your question.

If you want to check that every character in $p is the same you can do this:

for ($i = 0; $i < $count-1; $i++) {
    if ($p[$i] != $p[$i+1]){
        $ora = $p;
    }
    echo $ora."     "; 
}

Notice how $count should really be $count-1. Also make sure that $count=count($p) is $count=strlen($p)

Of course only if I understood correctly what you want to do.

EDIT: I automatically used $i+1 instead of $i++ but as the previous reply correctly states: Don't increment $i here! It will be a post increment anyway and thus absolutely unnecessary

Answer 2

Well the if will never be true, as you are doing post-increment which means that this if: $p[$i] != $p[$i++] would be equal in meaning to $p[$i] != $p[$i] . You can read more about it here . Also its not that clear about what you are trying to do. If you want to remove duplicate values from your array, you should use array_unique .

And be aware that $ora is array, and each time when the if will be true it'll overrite the previus value. The right way to do it is adding elements to $ora array like this: $ora[] = 'new value';